50722057 has 4 divisors (see below), whose sum is σ = 50745600. Its totient is φ = 50698516.

The previous prime is 50722037. The next prime is 50722081. The reversal of 50722057 is 75022705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75022705 = 5 ⋅15004541.

It is a cyclic number.

It is not a de Polignac number, because 50722057 - 2⁷ = 50721929 is a prime.

It is a super-2 number, since 2×50722057² = 5145454132622498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50722027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8173 + ... + 12970.

It is an arithmetic number, because the mean of its divisors is an integer number (12686400).

Almost surely, 2^50722057 is an apocalyptic number.

It is an amenable number.

50722057 is a deficient number, since it is larger than the sum of its proper divisors (23543).

50722057 is a wasteful number, since it uses less digits than its factorization.

50722057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23542.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 50722057 is about 7121.9419402295. The cubic root of 50722057 is about 370.1680682765.

The spelling of 50722057 in words is "fifty million, seven hundred twenty-two thousand, fifty-seven".