50621619 has 4 divisors (see below), whose sum is σ = 67495496. Its totient is φ = 33747744.

The previous prime is 50621611. The next prime is 50621633. The reversal of 50621619 is 91612605.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 50621619 - 2³ = 50621611 is a prime.

It is a super-2 number, since 2×50621619² = 5125096620362322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50621611) 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, 8436934 + ... + 8436939.

It is an arithmetic number, because the mean of its divisors is an integer number (16873874).

Almost surely, 2^50621619 is an apocalyptic number.

50621619 is a deficient number, since it is larger than the sum of its proper divisors (16873877).

50621619 is a wasteful number, since it uses less digits than its factorization.

50621619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16873876.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 50621619 is about 7114.8871389503. The cubic root of 50621619 is about 369.9235756447.

The spelling of 50621619 in words is "fifty million, six hundred twenty-one thousand, six hundred nineteen".