49561680 has 80 divisors (see below), whose sum is σ = 175595904. Its totient is φ = 11328000.

The previous prime is 49561657. The next prime is 49561691. The reversal of 49561680 is 8616594.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13071 + ... + 16430.

Almost surely, 2^49561680 is an apocalyptic number.

49561680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49561680 is an abundant number, since it is smaller than the sum of its proper divisors (126034224).

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

49561680 is a wasteful number, since it uses less digits than its factorization.

49561680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29524 (or 29518 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 49561680 is about 7040.0056818159. The cubic root of 49561680 is about 367.3234655850.

The spelling of 49561680 in words is "forty-nine million, five hundred sixty-one thousand, six hundred eighty".