50621133 has 4 divisors (see below), whose sum is σ = 67494848. Its totient is φ = 33747420.

The previous prime is 50621093. The next prime is 50621147. The reversal of 50621133 is 33112605.

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 not a de Polignac number, because 50621133 - 2⁸ = 50620877 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 (50621173) 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, 8436853 + ... + 8436858.

It is an arithmetic number, because the mean of its divisors is an integer number (16873712).

Almost surely, 2^50621133 is an apocalyptic number.

It is an amenable number.

50621133 is a deficient number, since it is larger than the sum of its proper divisors (16873715).

50621133 is a wasteful number, since it uses less digits than its factorization.

50621133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16873714.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 50621133 is about 7114.8529851291. The cubic root of 50621133 is about 369.9223918064.

Adding to 50621133 its reverse (33112605), we get a palindrome (83733738).

The spelling of 50621133 in words is "fifty million, six hundred twenty-one thousand, one hundred thirty-three".