25652670272 has 14 divisors (see below), whose sum is σ = 50904517698. Its totient is φ = 12826335104.

The previous prime is 25652670271. The next prime is 25652670287. The reversal of 25652670272 is 27207625652.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13157007616 + 12495662656 = 114704^2 + 111784^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25652670271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200411423 + ... + 200411550.

Almost surely, 2^25652670272 is an apocalyptic number.

It is an amenable number.

25652670272 is a deficient number, since it is larger than the sum of its proper divisors (25251847426).

25652670272 is an equidigital number, since it uses as much as digits as its factorization.

25652670272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400822985 (or 400822975 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 25652670272 in words is "twenty-five billion, six hundred fifty-two million, six hundred seventy thousand, two hundred seventy-two".