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25230355 = 55046071
BaseRepresentation
bin110000000111…
…1110000010011
31202110211112121
41200033300103
522424332410
62300435111
7424311613
oct140176023
952424477
1025230355
1113272a37
128548a97
1352c5007
1434caa43
1523359da
hex180fc13

25230355 has 4 divisors (see below), whose sum is σ = 30276432. Its totient is φ = 20184280.

The previous prime is 25230353. The next prime is 25230383. The reversal of 25230355 is 55303252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25230355 - 21 = 25230353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25230353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523031 + ... + 2523040.

It is an arithmetic number, because the mean of its divisors is an integer number (7569108).

Almost surely, 225230355 is an apocalyptic number.

25230355 is a deficient number, since it is larger than the sum of its proper divisors (5046077).

25230355 is an equidigital number, since it uses as much as digits as its factorization.

25230355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046076.

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

The square root of 25230355 is about 5022.9826796436. The cubic root of 25230355 is about 293.2971122918.

The spelling of 25230355 in words is "twenty-five million, two hundred thirty thousand, three hundred fifty-five".

Divisors: 1 5 5046071 25230355