25358014564 has 9 divisors (see below), whose sum is σ = 44377082841. Its totient is φ = 12678848040.

The previous prime is 25358014559. The next prime is 25358014603. The reversal of 25358014564 is 46541085352.

The square root of 25358014564 is 159242.

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., 4794454564 + 20563560000 = 69242^2 + 143400^2 .

It is a super-5 number, since 5×25358014564⁵ (a number of 53 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25358014564.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 278674 + ... + 358294.

Almost surely, 2^25358014564 is an apocalyptic number.

25358014564 is the 159242-nd square number.

It is an amenable number.

25358014564 is a deficient number, since it is larger than the sum of its proper divisors (19019068277).

25358014564 is an frugal number, since it uses more digits than its factorization.

25358014564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159246 (or 79623 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 25358014564 in words is "twenty-five billion, three hundred fifty-eight million, fourteen thousand, five hundred sixty-four".