50320557 has 24 divisors (see below), whose sum is σ = 83268224. Its totient is φ = 28685664.

The previous prime is 50320553. The next prime is 50320583. The reversal of 50320557 is 75502305.

It is not a de Polignac number, because 50320557 - 2² = 50320553 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 50320557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50320553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37968 + ... + 39270.

Almost surely, 2^50320557 is an apocalyptic number.

It is an amenable number.

50320557 is a deficient number, since it is larger than the sum of its proper divisors (32947667).

50320557 is a wasteful number, since it uses less digits than its factorization.

50320557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 50320557 is about 7093.6984006934. The cubic root of 50320557 is about 369.1887680690.

The spelling of 50320557 in words is "fifty million, three hundred twenty thousand, five hundred fifty-seven".