50972290 has 32 divisors (see below), whose sum is σ = 97511040. Its totient is φ = 19117824.

The previous prime is 50972281. The next prime is 50972297. The reversal of 50972290 is 9227905.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (50972297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74289 + ... + 74971.

It is an arithmetic number, because the mean of its divisors is an integer number (3047220).

Almost surely, 2^50972290 is an apocalyptic number.

50972290 is a deficient number, since it is larger than the sum of its proper divisors (46538750).

50972290 is a wasteful number, since it uses less digits than its factorization.

50972290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 50972290 is about 7139.4880768862. The cubic root of 50972290 is about 370.7758009752.

The spelling of 50972290 in words is "fifty million, nine hundred seventy-two thousand, two hundred ninety".