47564540 has 24 divisors (see below), whose sum is σ = 103108992. Its totient is φ = 18411840.

The previous prime is 47564527. The next prime is 47564593. The reversal of 47564540 is 4546574.

It is a self number, because there is not a number n which added to its sum of digits gives 47564540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37739 + ... + 38978.

It is an arithmetic number, because the mean of its divisors is an integer number (4296208).

Almost surely, 2^47564540 is an apocalyptic number.

It is an amenable number.

47564540 is an abundant number, since it is smaller than the sum of its proper divisors (55544452).

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

47564540 is a wasteful number, since it uses less digits than its factorization.

47564540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76757 (or 76755 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 47564540 is about 6896.7050103655. The cubic root of 47564540 is about 362.3217736641.

The spelling of 47564540 in words is "forty-seven million, five hundred sixty-four thousand, five hundred forty".