25230578317 has 16 divisors (see below), whose sum is σ = 29097492480. Its totient is φ = 21429718128.

The previous prime is 25230578297. The next prime is 25230578323. The reversal of 25230578317 is 71387503252.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-25230578317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25230578327) 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, 728958 + ... + 762784.

It is an arithmetic number, because the mean of its divisors is an integer number (1818593280).

Almost surely, 2^25230578317 is an apocalyptic number.

It is an amenable number.

25230578317 is a deficient number, since it is larger than the sum of its proper divisors (3866914163).

25230578317 is a wasteful number, since it uses less digits than its factorization.

25230578317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34800.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 25230578317 in words is "twenty-five billion, two hundred thirty million, five hundred seventy-eight thousand, three hundred seventeen".