49778115 has 16 divisors (see below), whose sum is σ = 79735968. Its totient is φ = 26518016.

The previous prime is 49778089. The next prime is 49778143. The reversal of 49778115 is 51187794.

It is a cyclic number.

It is not a de Polignac number, because 49778115 - 2⁵ = 49778083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19387 + ... + 21803.

It is an arithmetic number, because the mean of its divisors is an integer number (4983498).

Almost surely, 2^49778115 is an apocalyptic number.

49778115 is a deficient number, since it is larger than the sum of its proper divisors (29957853).

49778115 is a wasteful number, since it uses less digits than its factorization.

49778115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798.

The product of its digits is 70560, while the sum is 42.

The square root of 49778115 is about 7055.3607278438. The cubic root of 49778115 is about 367.8573875369.

The spelling of 49778115 in words is "forty-nine million, seven hundred seventy-eight thousand, one hundred fifteen".