50572021 has 4 divisors (see below), whose sum is σ = 50734944. Its totient is φ = 50409100.

The previous prime is 50572019. The next prime is 50572033. The reversal of 50572021 is 12027505.

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.

It is a cyclic number.

It is not a de Polignac number, because 50572021 - 2¹ = 50572019 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50571983 and 50572001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50572001) 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, 80995 + ... + 81616.

It is an arithmetic number, because the mean of its divisors is an integer number (12683736).

Almost surely, 2^50572021 is an apocalyptic number.

It is an amenable number.

50572021 is a deficient number, since it is larger than the sum of its proper divisors (162923).

50572021 is a wasteful number, since it uses less digits than its factorization.

50572021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162922.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 50572021 is about 7111.4007762184. The cubic root of 50572021 is about 369.8027217139.

Adding to 50572021 its reverse (12027505), we get a palindrome (62599526).

The spelling of 50572021 in words is "fifty million, five hundred seventy-two thousand, twenty-one".