25120523156 has 12 divisors (see below), whose sum is σ = 43964386368. Its totient is φ = 12559269912.

The previous prime is 25120523147. The next prime is 25120523177. The reversal of 25120523156 is 65132502152.

It is a super-2 number, since 2×25120523156² (a number of 22 digits) contains 22 as substring.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 189386 + ... + 293441.

It is an arithmetic number, because the mean of its divisors is an integer number (3663698864).

Almost surely, 2^25120523156 is an apocalyptic number.

It is an amenable number.

25120523156 is a deficient number, since it is larger than the sum of its proper divisors (18843863212).

25120523156 is a wasteful number, since it uses less digits than its factorization.

25120523156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495838 (or 495836 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 25120523156 in words is "twenty-five billion, one hundred twenty million, five hundred twenty-three thousand, one hundred fifty-six".