49609557 has 8 divisors (see below), whose sum is σ = 73495680. Its totient is φ = 33073020.

The previous prime is 49609541. The next prime is 49609577. The reversal of 49609557 is 75590694.

It is a happy number.

49609557 is a `hidden beast` number, since 4 + 96 + 0 + 9 + 557 = 666.

It is not a de Polignac number, because 49609557 - 2⁴ = 49609541 is a prime.

It is a super-2 number, since 2×49609557² = 4922216291472498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49609507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918669 + ... + 918722.

It is an arithmetic number, because the mean of its divisors is an integer number (9186960).

Almost surely, 2^49609557 is an apocalyptic number.

It is an amenable number.

49609557 is a deficient number, since it is larger than the sum of its proper divisors (23886123).

49609557 is a wasteful number, since it uses less digits than its factorization.

49609557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837400 (or 1837394 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 49609557 is about 7043.4052133893. The cubic root of 49609557 is about 367.4417067056.

The spelling of 49609557 in words is "forty-nine million, six hundred nine thousand, five hundred fifty-seven".