25000000052 has 12 divisors (see below), whose sum is σ = 45652174176. Its totient is φ = 11956521720.

The previous prime is 25000000021. The next prime is 25000000111.

25000000052 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 24999999973 and 25000000036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135869474 + ... + 135869657.

It is an arithmetic number, because the mean of its divisors is an integer number (3804347848).

Almost surely, 2^25000000052 is an apocalyptic number.

It is an amenable number.

25000000052 is a deficient number, since it is larger than the sum of its proper divisors (20652174124).

25000000052 is a wasteful number, since it uses less digits than its factorization.

25000000052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271739158 (or 271739156 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

It can be divided in two parts, 250000000 and 52, that added together give a palindrome (250000052).

The spelling of 25000000052 in words is "twenty-five billion, fifty-two", and thus it is an aban number and an uban number.