49996557 has 24 divisors (see below), whose sum is σ = 78067808. Its totient is φ = 30650400.

The previous prime is 49996489. The next prime is 49996571. The reversal of 49996557 is 75569994.

It is not a de Polignac number, because 49996557 - 2⁸ = 49996301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49996157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38082 + ... + 39372.

Almost surely, 2^49996557 is an apocalyptic number.

It is an amenable number.

49996557 is a deficient number, since it is larger than the sum of its proper divisors (28071251).

49996557 is a wasteful number, since it uses less digits than its factorization.

49996557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641 (or 1638 counting only the distinct ones).

The product of its digits is 3061800, while the sum is 54.

The square root of 49996557 is about 7070.8243508095. The cubic root of 49996557 is about 368.3946935896.

The spelling of 49996557 in words is "forty-nine million, nine hundred ninety-six thousand, five hundred fifty-seven".