50622989 has 4 divisors (see below), whose sum is σ = 51378624. Its totient is φ = 49867356.

The previous prime is 50622967. The next prime is 50623019. The reversal of 50622989 is 98922605.

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: 98922605 = 5 ⋅19784521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50622989 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 (50622389) 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, 377717 + ... + 377850.

It is an arithmetic number, because the mean of its divisors is an integer number (12844656).

Almost surely, 2^50622989 is an apocalyptic number.

It is an amenable number.

50622989 is a deficient number, since it is larger than the sum of its proper divisors (755635).

50622989 is an equidigital number, since it uses as much as digits as its factorization.

50622989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755634.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 50622989 is about 7114.9834153004. The cubic root of 50622989 is about 369.9269127613.

The spelling of 50622989 in words is "fifty million, six hundred twenty-two thousand, nine hundred eighty-nine".