50557157 has 8 divisors (see below), whose sum is σ = 60820800. Its totient is φ = 41053824.

The previous prime is 50557153. The next prime is 50557181. The reversal of 50557157 is 75175505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50557157 - 2² = 50557153 is a prime.

It is a super-2 number, since 2×50557157² = 5112052247845298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50557153) 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, 189932 + ... + 190197.

It is an arithmetic number, because the mean of its divisors is an integer number (7602600).

Almost surely, 2^50557157 is an apocalyptic number.

It is an amenable number.

50557157 is a deficient number, since it is larger than the sum of its proper divisors (10263643).

50557157 is a wasteful number, since it uses less digits than its factorization.

50557157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380155.

The product of its (nonzero) digits is 30625, while the sum is 35.

The square root of 50557157 is about 7110.3556169857. The cubic root of 50557157 is about 369.7664876714.

The spelling of 50557157 in words is "fifty million, five hundred fifty-seven thousand, one hundred fifty-seven".