25262559364 has 27 divisors (see below), whose sum is σ = 51431883237. Its totient is φ = 10825857504.

The previous prime is 25262559359. The next prime is 25262559367. The reversal of 25262559364 is 46395526252.

The square root of 25262559364 is 158942.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6927232900 + 18335326464 = 83230^2 + 135408^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (25262559367) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2219512 + ... + 2230864.

Almost surely, 2^25262559364 is an apocalyptic number.

25262559364 is the 158942-nd square number.

It is an amenable number.

25262559364 is an abundant number, since it is smaller than the sum of its proper divisors (26169323873).

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

25262559364 is an frugal number, since it uses more digits than its factorization.

25262559364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22724 (or 11362 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 49.

Multiplying 25262559364 by its sum of digits (49), we get a square (1237865408836 = 1112594²).

25262559364 divided by its sum of digits (49) gives a square (515562436 = 22706²).

The spelling of 25262559364 in words is "twenty-five billion, two hundred sixty-two million, five hundred fifty-nine thousand, three hundred sixty-four".