50658421 has 4 divisors (see below), whose sum is σ = 55263744. Its totient is φ = 46053100.

The previous prime is 50658409. The next prime is 50658449. The reversal of 50658421 is 12485605.

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 50658421 - 2²¹ = 48561269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50658451) 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, 2302645 + ... + 2302666.

It is an arithmetic number, because the mean of its divisors is an integer number (13815936).

Almost surely, 2^50658421 is an apocalyptic number.

It is an amenable number.

50658421 is a deficient number, since it is larger than the sum of its proper divisors (4605323).

50658421 is a wasteful number, since it uses less digits than its factorization.

50658421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605322.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 50658421 is about 7117.4729363729. The cubic root of 50658421 is about 370.0131989448.

It can be divided in two parts, 506584 and 21, that added together give a palindrome (506605).

The spelling of 50658421 in words is "fifty million, six hundred fifty-eight thousand, four hundred twenty-one".