47755557 has 12 divisors (see below), whose sum is σ = 69060160. Its totient is φ = 31800168.

The previous prime is 47755553. The next prime is 47755573. The reversal of 47755557 is 75555774.

It is a happy number.

47755557 is a `hidden beast` number, since 47 + 7 + 55 + 557 = 666.

It is not a de Polignac number, because 47755557 - 2² = 47755553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47755553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6798 + ... + 11904.

Almost surely, 2^47755557 is an apocalyptic number.

It is an amenable number.

47755557 is a deficient number, since it is larger than the sum of its proper divisors (21304603).

47755557 is a wasteful number, since it uses less digits than its factorization.

47755557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152 (or 6149 counting only the distinct ones).

The product of its digits is 857500, while the sum is 45.

The square root of 47755557 is about 6910.5395592530. The cubic root of 47755557 is about 362.8061483463.

The spelling of 47755557 in words is "forty-seven million, seven hundred fifty-five thousand, five hundred fifty-seven".