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253002553 = 2311000111
BaseRepresentation
bin11110001010010…
…00001100111001
3122122001212020221
433011020030321
51004232040203
641034420041
76161325526
oct1705101471
9578055227
10253002553
1111a8a4621
1270891621
134055426b
142585c14d
1517328abd
hexf148339

253002553 has 4 divisors (see below), whose sum is σ = 264002688. Its totient is φ = 242002420.

The previous prime is 253002521. The next prime is 253002601. The reversal of 253002553 is 355200352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253002553 - 25 = 253002521 is a prime.

It is a Duffinian number.

253002553 is a modest number, since divided by 2553 gives 253 as remainder.

It is not an unprimeable number, because it can be changed into a prime (253002053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5500033 + ... + 5500078.

It is an arithmetic number, because the mean of its divisors is an integer number (66000672).

Almost surely, 2253002553 is an apocalyptic number.

253002553 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

253002553 is a deficient number, since it is larger than the sum of its proper divisors (11000135).

253002553 is a wasteful number, since it uses less digits than its factorization.

253002553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000134.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 253002553 is about 15906.0539732518. The cubic root of 253002553 is about 632.4724817349.

The spelling of 253002553 in words is "two hundred fifty-three million, two thousand, five hundred fifty-three".

Divisors: 1 23 11000111 253002553