49975913 has 4 divisors (see below), whose sum is σ = 53820228. Its totient is φ = 46131600.

The previous prime is 49975907. The next prime is 49975927. The reversal of 49975913 is 31957994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13337104 + 36638809 = 3652^2 + 6053^2 .

It is a cyclic number.

It is not a de Polignac number, because 49975913 - 2⁸ = 49975657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49975943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1922138 + ... + 1922163.

It is an arithmetic number, because the mean of its divisors is an integer number (13455057).

Almost surely, 2^49975913 is an apocalyptic number.

It is an amenable number.

49975913 is a deficient number, since it is larger than the sum of its proper divisors (3844315).

49975913 is a wasteful number, since it uses less digits than its factorization.

49975913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844314.

The product of its digits is 306180, while the sum is 47.

The square root of 49975913 is about 7069.3643985863. The cubic root of 49975913 is about 368.3439821841.

The spelling of 49975913 in words is "forty-nine million, nine hundred seventy-five thousand, nine hundred thirteen".