25230623321 has 16 divisors (see below), whose sum is σ = 27197271504. Its totient is φ = 23320387584.

The previous prime is 25230623311. The next prime is 25230623323. The reversal of 25230623321 is 12332603252.

It can be written as a sum of positive squares in 8 ways, for example, as 2349825625 + 22880797696 = 48475^2 + 151264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25230623321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25230623323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245525 + ... + 332781.

It is an arithmetic number, because the mean of its divisors is an integer number (1699829469).

Almost surely, 2^25230623321 is an apocalyptic number.

It is an amenable number.

25230623321 is a deficient number, since it is larger than the sum of its proper divisors (1966648183).

25230623321 is a wasteful number, since it uses less digits than its factorization.

25230623321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87580.

The product of its (nonzero) digits is 12960, while the sum is 29.

The spelling of 25230623321 in words is "twenty-five billion, two hundred thirty million, six hundred twenty-three thousand, three hundred twenty-one".