49389953 has 4 divisors (see below), whose sum is σ = 50594628. Its totient is φ = 48185280.

The previous prime is 49389937. The next prime is 49389959. The reversal of 49389953 is 35998394.

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 18731584 + 30658369 = 4328^2 + 5537^2 .

It is a cyclic number.

It is not a de Polignac number, because 49389953 - 2⁴ = 49389937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49389959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602276 + ... + 602357.

It is an arithmetic number, because the mean of its divisors is an integer number (12648657).

Almost surely, 2^49389953 is an apocalyptic number.

It is an amenable number.

49389953 is a deficient number, since it is larger than the sum of its proper divisors (1204675).

49389953 is a wasteful number, since it uses less digits than its factorization.

49389953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204674.

The product of its digits is 1049760, while the sum is 50.

The square root of 49389953 is about 7027.7985884628. The cubic root of 49389953 is about 366.8987264707.

The spelling of 49389953 in words is "forty-nine million, three hundred eighty-nine thousand, nine hundred fifty-three".