50781115 has 16 divisors (see below), whose sum is σ = 75974400. Its totient is φ = 31655520.

The previous prime is 50781061. The next prime is 50781119. The reversal of 50781115 is 51118705.

It is not a de Polignac number, because 50781115 - 2⁹ = 50780603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50781119) 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, 65565 + ... + 66334.

It is an arithmetic number, because the mean of its divisors is an integer number (4748400).

Almost surely, 2^50781115 is an apocalyptic number.

50781115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

50781115 is a deficient number, since it is larger than the sum of its proper divisors (25193285).

50781115 is a wasteful number, since it uses less digits than its factorization.

50781115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131922.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 50781115 is about 7126.0869346367. The cubic root of 50781115 is about 370.3116803972.

The spelling of 50781115 in words is "fifty million, seven hundred eighty-one thousand, one hundred fifteen".