50987090 has 64 divisors (see below), whose sum is σ = 119439360. Its totient is φ = 15195840.

The previous prime is 50987087. The next prime is 50987099. The reversal of 50987090 is 9078905.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (50987099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16271 + ... + 19149.

It is an arithmetic number, because the mean of its divisors is an integer number (1866240).

Almost surely, 2^50987090 is an apocalyptic number.

50987090 is an abundant number, since it is smaller than the sum of its proper divisors (68452270).

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

50987090 is a wasteful number, since it uses less digits than its factorization.

50987090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 50987090 is about 7140.5244905399. The cubic root of 50987090 is about 370.8116828948.

The spelling of 50987090 in words is "fifty million, nine hundred eighty-seven thousand, ninety".