25461016452 has 36 divisors (see below), whose sum is σ = 64389075660. Its totient is φ = 8483143872.

The previous prime is 25461016397. The next prime is 25461016489.

25461016452 is a `hidden beast` number, since 2 + 5 + 4 + 6 + 1 + 0 + 1 + 645 + 2 = 666.

25461016452 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 13655324736 + 11805691716 = 116856^2 + 108654^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 80127 + ... + 239462.

It is an arithmetic number, because the mean of its divisors is an integer number (1788585435).

Almost surely, 2^25461016452 is an apocalyptic number.

It is an amenable number.

25461016452 is an abundant number, since it is smaller than the sum of its proper divisors (38928059208).

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

25461016452 is a wasteful number, since it uses less digits than its factorization.

25461016452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321812 (or 321807 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 25461016452 in words is "twenty-five billion, four hundred sixty-one million, sixteen thousand, four hundred fifty-two".