25122625562 has 4 divisors (see below), whose sum is σ = 37683938346. Its totient is φ = 12561312780.

The previous prime is 25122625553. The next prime is 25122625589. The reversal of 25122625562 is 26552622152.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25014901921 + 107723641 = 158161^2 + 10379^2 .

It is a super-2 number, since 2×25122625562² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6280656389 + ... + 6280656392.

Almost surely, 2^25122625562 is an apocalyptic number.

25122625562 is a deficient number, since it is larger than the sum of its proper divisors (12561312784).

25122625562 is a wasteful number, since it uses less digits than its factorization.

25122625562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12561312783.

The product of its digits is 144000, while the sum is 38.

The spelling of 25122625562 in words is "twenty-five billion, one hundred twenty-two million, six hundred twenty-five thousand, five hundred sixty-two".