Search a number
-
+
253331225 = 527331953
BaseRepresentation
bin11110001100110…
…00011100011001
3122122200120002222
433012120130121
51004323044400
641045433425
76164165000
oct1706303431
9578616088
10253331225
1111aaa9554
1270a0b875
134063aa44
1425905c37
1517391185
hexf198719

253331225 has 48 divisors (see below), whose sum is σ = 378547200. Its totient is φ = 167932800.

The previous prime is 253331219. The next prime is 253331233. The reversal of 253331225 is 522133352.

253331225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253331225 - 24 = 253331209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253331194 and 253331203.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265349 + ... + 266301.

It is an arithmetic number, because the mean of its divisors is an integer number (7886400).

Almost surely, 2253331225 is an apocalyptic number.

253331225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253331225 is a deficient number, since it is larger than the sum of its proper divisors (125215975).

253331225 is an equidigital number, since it uses as much as digits as its factorization.

253331225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 996 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 253331225 is about 15916.3822836724. The cubic root of 253331225 is about 632.7462418764.

Adding to 253331225 its reverse (522133352), we get a palindrome (775464577).

The spelling of 253331225 in words is "two hundred fifty-three million, three hundred thirty-one thousand, two hundred twenty-five".

Divisors: 1 5 7 25 31 35 49 155 175 217 245 343 775 953 1085 1225 1519 1715 4765 5425 6671 7595 8575 10633 23825 29543 33355 37975 46697 53165 147715 166775 206801 233485 265825 326879 738575 1034005 1167425 1447607 1634395 5170025 7238035 8171975 10133249 36190175 50666245 253331225