25216124072 has 32 divisors (see below), whose sum is σ = 50323576320. Its totient is φ = 11804271360.

The previous prime is 25216124071. The next prime is 25216124119. The reversal of 25216124072 is 27042161252.

It is a super-2 number, since 2×25216124072² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25216124071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459398 + ... + 511349.

It is an arithmetic number, because the mean of its divisors is an integer number (1572611760).

Almost surely, 2^25216124072 is an apocalyptic number.

It is an amenable number.

25216124072 is a deficient number, since it is larger than the sum of its proper divisors (25107452248).

25216124072 is a wasteful number, since it uses less digits than its factorization.

25216124072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970961 (or 970957 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 25216124072 in words is "twenty-five billion, two hundred sixteen million, one hundred twenty-four thousand, seventy-two".