25320364630 has 128 divisors (see below), whose sum is σ = 53867358720. Its totient is φ = 8471485440.

The previous prime is 25320364613. The next prime is 25320364633. The reversal of 25320364630 is 3646302352.

It is a super-2 number, since 2×25320364630² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25320364633) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10220952 + ... + 10223428.

It is an arithmetic number, because the mean of its divisors is an integer number (420838740).

Almost surely, 2^25320364630 is an apocalyptic number.

25320364630 is an abundant number, since it is smaller than the sum of its proper divisors (28546994090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25320364630 is a wasteful number, since it uses less digits than its factorization.

25320364630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654.

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 25320364630 its reverse (3646302352), we get a palindrome (28966666982).

The spelling of 25320364630 in words is "twenty-five billion, three hundred twenty million, three hundred sixty-four thousand, six hundred thirty".