49993165 has 4 divisors (see below), whose sum is σ = 59991804. Its totient is φ = 39994528.

The previous prime is 49993147. The next prime is 49993171. The reversal of 49993165 is 56139994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56139994 = 2 ⋅28069997.

It can be written as a sum of positive squares in 2 ways, for example, as 27846729 + 22146436 = 5277^2 + 4706^2 .

It is a cyclic number.

It is not a de Polignac number, because 49993165 - 2²⁵ = 16438733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4999312 + ... + 4999321.

It is an arithmetic number, because the mean of its divisors is an integer number (14997951).

Almost surely, 2^49993165 is an apocalyptic number.

It is an amenable number.

49993165 is a deficient number, since it is larger than the sum of its proper divisors (9998639).

49993165 is an equidigital number, since it uses as much as digits as its factorization.

49993165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9998638.

The product of its digits is 262440, while the sum is 46.

The square root of 49993165 is about 7070.5844878624. The cubic root of 49993165 is about 368.3863621955.

The spelling of 49993165 in words is "forty-nine million, nine hundred ninety-three thousand, one hundred sixty-five".