49539864 has 32 divisors (see below), whose sum is σ = 135109440. Its totient is φ = 15012000.

The previous prime is 49539851. The next prime is 49539871. The reversal of 49539864 is 46893594.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93562 + ... + 94089.

It is an arithmetic number, because the mean of its divisors is an integer number (4222170).

Almost surely, 2^49539864 is an apocalyptic number.

49539864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

49539864 is an abundant number, since it is smaller than the sum of its proper divisors (85569576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49539864 is a wasteful number, since it uses less digits than its factorization.

49539864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187671 (or 187667 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 49539864 is about 7038.4560807041. The cubic root of 49539864 is about 367.2695616764.

It can be divided in two parts, 49539 and 864, that added together give a triangular number (50403 = T₃₁₇).

The spelling of 49539864 in words is "forty-nine million, five hundred thirty-nine thousand, eight hundred sixty-four".