49911957 has 12 divisors (see below), whose sum is σ = 74765600. Its totient is φ = 33274476.

The previous prime is 49911947. The next prime is 49911959. The reversal of 49911957 is 75911994.

It is not a de Polignac number, because 49911957 - 2⁶ = 49911893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49911959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102457 + ... + 102942.

Almost surely, 2^49911957 is an apocalyptic number.

It is an amenable number.

49911957 is a deficient number, since it is larger than the sum of its proper divisors (24853643).

49911957 is an equidigital number, since it uses as much as digits as its factorization.

49911957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205414 (or 205402 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 49911957 is about 7064.8394886225. The cubic root of 49911957 is about 368.1867873628.

The spelling of 49911957 in words is "forty-nine million, nine hundred eleven thousand, nine hundred fifty-seven".