47977550 has 24 divisors (see below), whose sum is σ = 89446656. Its totient is φ = 19146240.

The previous prime is 47977541. The next prime is 47977591. The reversal of 47977550 is 5577974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28019 + ... + 29681.

It is an arithmetic number, because the mean of its divisors is an integer number (3726944).

Almost surely, 2^47977550 is an apocalyptic number.

47977550 is a deficient number, since it is larger than the sum of its proper divisors (41469106).

47977550 is a wasteful number, since it uses less digits than its factorization.

47977550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 2247 counting only the distinct ones).

The product of its (nonzero) digits is 308700, while the sum is 44.

The square root of 47977550 is about 6926.5828515943. The cubic root of 47977550 is about 363.3674509013.

The spelling of 47977550 in words is "forty-seven million, nine hundred seventy-seven thousand, five hundred fifty".