25032825828 has 18 divisors (see below), whose sum is σ = 63277420934. Its totient is φ = 8344275264.

The previous prime is 25032825817. The next prime is 25032825833. The reversal of 25032825828 is 82852823052.

25032825828 is a `hidden beast` number, since 2 + 50 + 328 + 258 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24878121984 + 154703844 = 157728^2 + 12438^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347678101 + ... + 347678172.

Almost surely, 2^25032825828 is an apocalyptic number.

It is an amenable number.

25032825828 is an abundant number, since it is smaller than the sum of its proper divisors (38244595106).

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

25032825828 is a wasteful number, since it uses less digits than its factorization.

25032825828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695356283 (or 695356278 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

It can be divided in two parts, 25032 and 825828, that added together give a triangular number (850860 = T₁₃₀₄).

The spelling of 25032825828 in words is "twenty-five billion, thirty-two million, eight hundred twenty-five thousand, eight hundred twenty-eight".