25345352552 has 32 divisors (see below), whose sum is σ = 51675012480. Its totient is φ = 11584278720.

The previous prime is 25345352533. The next prime is 25345352623. The reversal of 25345352552 is 25525354352.

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 7 ways as a sum of consecutive naturals, for example, 1172324 + ... + 1193747.

It is an arithmetic number, because the mean of its divisors is an integer number (1614844140).

Almost surely, 2^25345352552 is an apocalyptic number.

It is an amenable number.

25345352552 is an abundant number, since it is smaller than the sum of its proper divisors (26329659928).

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

25345352552 is a wasteful number, since it uses less digits than its factorization.

25345352552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366193 (or 2366189 counting only the distinct ones).

The product of its digits is 900000, while the sum is 41.

The spelling of 25345352552 in words is "twenty-five billion, three hundred forty-five million, three hundred fifty-two thousand, five hundred fifty-two".