50331645 has 128 divisors (see below), whose sum is σ = 117089280. Its totient is φ = 19906560.

The previous prime is 50331599. The next prime is 50331653. The reversal of 50331645 is 54613305.

50331645 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 50331645 - 2⁷ = 50331517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 208725 + ... + 208965.

It is an arithmetic number, because the mean of its divisors is an integer number (914760).

Almost surely, 2^50331645 is an apocalyptic number.

It is an amenable number.

50331645 is an abundant number, since it is smaller than the sum of its proper divisors (66757635).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50331645 is a wasteful number, since it uses less digits than its factorization.

50331645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 50331645 is about 7094.4798963701. The cubic root of 50331645 is about 369.2158826630.

The spelling of 50331645 in words is "fifty million, three hundred thirty-one thousand, six hundred forty-five".