25647274652 has 12 divisors (see below), whose sum is σ = 44887731336. Its totient is φ = 12822208560.

The previous prime is 25647274637. The next prime is 25647274663.

25647274652 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25647274652² (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 25647274652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316283 + ... + 389010.

It is an arithmetic number, because the mean of its divisors is an integer number (3740644278).

Almost surely, 2^25647274652 is an apocalyptic number.

It is an amenable number.

25647274652 is a deficient number, since it is larger than the sum of its proper divisors (19240456684).

25647274652 is a wasteful number, since it uses less digits than its factorization.

25647274652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714388 (or 714386 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 50.

The spelling of 25647274652 in words is "twenty-five billion, six hundred forty-seven million, two hundred seventy-four thousand, six hundred fifty-two".