49957439 has 8 divisors (see below), whose sum is σ = 57144480. Its totient is φ = 42782976.

The previous prime is 49957423. The next prime is 49957447. The reversal of 49957439 is 93475994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49957439 - 2⁴ = 49957423 is a prime.

It is a super-2 number, since 2×49957439² = 4991491422877442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49957469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8027 + ... + 12819.

It is an arithmetic number, because the mean of its divisors is an integer number (7143060).

Almost surely, 2^49957439 is an apocalyptic number.

49957439 is a deficient number, since it is larger than the sum of its proper divisors (7187041).

49957439 is a wasteful number, since it uses less digits than its factorization.

49957439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289.

The product of its digits is 1224720, while the sum is 50.

The square root of 49957439 is about 7068.0576539810. The cubic root of 49957439 is about 368.2985894807.

The spelling of 49957439 in words is "forty-nine million, nine hundred fifty-seven thousand, four hundred thirty-nine".