972500055772 has 12 divisors (see below), whose sum is σ = 1945000111600. Its totient is φ = 416785738176.

The previous prime is 972500055763. The next prime is 972500055809. The reversal of 972500055772 is 277550005279.

972500055772 is an admirable number.

It is a super-2 number, since 2×972500055772² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17366072397 + ... + 17366072452.

Almost surely, 2^972500055772 is an apocalyptic number.

It is an amenable number.

972500055772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

972500055772 is a wasteful number, since it uses less digits than its factorization.

972500055772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34732144860 (or 34732144858 counting only the distinct ones).

The product of its (nonzero) digits is 1543500, while the sum is 49.

The spelling of 972500055772 in words is "nine hundred seventy-two billion, five hundred million, fifty-five thousand, seven hundred seventy-two".