50557951 has 4 divisors (see below), whose sum is σ = 50719792. Its totient is φ = 50396112.

The previous prime is 50557939. The next prime is 50557957. The reversal of 50557951 is 15975505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50557951 - 2¹⁵ = 50525183 is a prime.

It is a super-2 number, since 2×50557951² = 5112212818636802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50557951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50557957) by changing a digit.

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, 80451 + ... + 81076.

It is an arithmetic number, because the mean of its divisors is an integer number (12679948).

Almost surely, 2^50557951 is an apocalyptic number.

50557951 is a deficient number, since it is larger than the sum of its proper divisors (161841).

50557951 is a wasteful number, since it uses less digits than its factorization.

50557951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161840.

The product of its (nonzero) digits is 39375, while the sum is 37.

The square root of 50557951 is about 7110.4114508234. The cubic root of 50557951 is about 369.7684233885.

The spelling of 50557951 in words is "fifty million, five hundred fifty-seven thousand, nine hundred fifty-one".