25542972202 has 32 divisors (see below), whose sum is σ = 45070603200. Its totient is φ = 10731081600.

The previous prime is 25542972149. The next prime is 25542972239. The reversal of 25542972202 is 20227924552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728077 + ... + 762352.

It is an arithmetic number, because the mean of its divisors is an integer number (1408456350).

Almost surely, 2^25542972202 is an apocalyptic number.

25542972202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25542972202 is a deficient number, since it is larger than the sum of its proper divisors (19527630998).

25542972202 is a wasteful number, since it uses less digits than its factorization.

25542972202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490502.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 25542972202 in words is "twenty-five billion, five hundred forty-two million, nine hundred seventy-two thousand, two hundred two".