25526513952 has 36 divisors (see below), whose sum is σ = 72591024870. Its totient is φ = 8508837888.

The previous prime is 25526513849. The next prime is 25526513981. The reversal of 25526513952 is 25931562552.

It is a happy number.

25526513952 is a `hidden beast` number, since 2 + 552 + 6 + 5 + 1 + 3 + 95 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15031740816 + 10494773136 = 122604^2 + 102444^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 25526513898 and 25526513907.

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 5 ways as a sum of consecutive naturals, for example, 44316577 + ... + 44317152.

Almost surely, 2^25526513952 is an apocalyptic number.

It is an amenable number.

25526513952 is an abundant number, since it is smaller than the sum of its proper divisors (47064510918).

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

25526513952 is a wasteful number, since it uses less digits than its factorization.

25526513952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88633745 (or 88633734 counting only the distinct ones).

The product of its digits is 810000, while the sum is 45.

The spelling of 25526513952 in words is "twenty-five billion, five hundred twenty-six million, five hundred thirteen thousand, nine hundred fifty-two".