50172957 has 6 divisors (see below), whose sum is σ = 72472062. Its totient is φ = 33448632.

The previous prime is 50172887. The next prime is 50172989. The reversal of 50172957 is 75927105.

It can be written as a sum of positive squares in only one way, i.e., 25462116 + 24710841 = 5046^2 + 4971^2 .

It is not a de Polignac number, because 50172957 - 2²⁴ = 33395741 is a prime.

It is a super-2 number, since 2×50172957² = 5034651228247698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50172557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2787378 + ... + 2787395.

It is an arithmetic number, because the mean of its divisors is an integer number (12078677).

Almost surely, 2^50172957 is an apocalyptic number.

It is an amenable number.

50172957 is a deficient number, since it is larger than the sum of its proper divisors (22299105).

50172957 is a wasteful number, since it uses less digits than its factorization.

50172957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5574779 (or 5574776 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 50172957 is about 7083.2871606338. The cubic root of 50172957 is about 368.8274470290.

The spelling of 50172957 in words is "fifty million, one hundred seventy-two thousand, nine hundred fifty-seven".