49509188 has 12 divisors (see below), whose sum is σ = 87534972. Its totient is φ = 24499200.

The previous prime is 49509169. The next prime is 49509191. The reversal of 49509188 is 88190594.

It can be written as a sum of positive squares in 2 ways, for example, as 25381444 + 24127744 = 5038^2 + 4912^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63413 + ... + 64188.

It is an arithmetic number, because the mean of its divisors is an integer number (7294581).

Almost surely, 2^49509188 is an apocalyptic number.

It is an amenable number.

49509188 is a deficient number, since it is larger than the sum of its proper divisors (38025784).

49509188 is a wasteful number, since it uses less digits than its factorization.

49509188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127702 (or 127700 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 49509188 is about 7036.2765721651. The cubic root of 49509188 is about 367.1937393224.

The spelling of 49509188 in words is "forty-nine million, five hundred nine thousand, one hundred eighty-eight".