49561660 has 12 divisors (see below), whose sum is σ = 104079528. Its totient is φ = 19824656.

The previous prime is 49561657. The next prime is 49561691. The reversal of 49561660 is 6616594.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239022 + ... + 1239061.

It is an arithmetic number, because the mean of its divisors is an integer number (8673294).

Almost surely, 2^49561660 is an apocalyptic number.

It is an amenable number.

49561660 is an abundant number, since it is smaller than the sum of its proper divisors (54517868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49561660 is a wasteful number, since it uses less digits than its factorization.

49561660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478092 (or 2478090 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 49561660 is about 7040.0042613623. The cubic root of 49561660 is about 367.3234161754.

The spelling of 49561660 in words is "forty-nine million, five hundred sixty-one thousand, six hundred sixty".