25270189156 has 27 divisors (see below), whose sum is σ = 44994211353. Its totient is φ = 12418423920.

The previous prime is 25270189127. The next prime is 25270189177. The reversal of 25270189156 is 65198107252.

The square root of 25270189156 is 158966.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 821739556 + 24448449600 = 28666^2 + 156360^2 .

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 19393201 + ... + 19394503.

Almost surely, 2^25270189156 is an apocalyptic number.

25270189156 is the 158966-th square number.

It is an amenable number.

25270189156 is a deficient number, since it is larger than the sum of its proper divisors (19724022197).

25270189156 is an frugal number, since it uses more digits than its factorization.

25270189156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 25270189156 in words is "twenty-five billion, two hundred seventy million, one hundred eighty-nine thousand, one hundred fifty-six".