25258885252 has 12 divisors (see below), whose sum is σ = 45281172636. Its totient is φ = 12321407360.

The previous prime is 25258885217. The next prime is 25258885279.

25258885252 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 14545807236 + 10713078016 = 120606^2 + 103504^2 .

It is a super-2 number, since 2×25258885252² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25258885252.

It is an unprimeable number.

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, 77008633 + ... + 77008960.

It is an arithmetic number, because the mean of its divisors is an integer number (3773431053).

Almost surely, 2^25258885252 is an apocalyptic number.

It is an amenable number.

25258885252 is a deficient number, since it is larger than the sum of its proper divisors (20022287384).

25258885252 is a wasteful number, since it uses less digits than its factorization.

25258885252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154017638 (or 154017636 counting only the distinct ones).

The product of its digits is 5120000, while the sum is 52.

The spelling of 25258885252 in words is "twenty-five billion, two hundred fifty-eight million, eight hundred eighty-five thousand, two hundred fifty-two".