49980915 has 32 divisors (see below), whose sum is σ = 89164800. Its totient is φ = 26563680.

The previous prime is 49980907. The next prime is 49980919. The reversal of 49980915 is 51908994.

It is not a de Polignac number, because 49980915 - 2³ = 49980907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (49980919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57756 + ... + 58614.

It is an arithmetic number, because the mean of its divisors is an integer number (2786400).

Almost surely, 2^49980915 is an apocalyptic number.

49980915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

49980915 is a deficient number, since it is larger than the sum of its proper divisors (39183885).

49980915 is a wasteful number, since it uses less digits than its factorization.

49980915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 49980915 is about 7069.7181697717. The cubic root of 49980915 is about 368.3562707382.

The spelling of 49980915 in words is "forty-nine million, nine hundred eighty thousand, nine hundred fifteen".