47556660 has 48 divisors (see below), whose sum is σ = 133491456. Its totient is φ = 12650112.

The previous prime is 47556647. The next prime is 47556661. The reversal of 47556660 is 6665574.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47556661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32709 + ... + 34131.

It is an arithmetic number, because the mean of its divisors is an integer number (2781072).

Almost surely, 2^47556660 is an apocalyptic number.

It is an amenable number.

47556660 is an abundant number, since it is smaller than the sum of its proper divisors (85934796).

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

47556660 is a wasteful number, since it uses less digits than its factorization.

47556660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 47556660 is about 6896.1336994000. The cubic root of 47556660 is about 362.3017639870.

The spelling of 47556660 in words is "forty-seven million, five hundred fifty-six thousand, six hundred sixty".