47157285 has 16 divisors (see below), whose sum is σ = 86230656. Its totient is φ = 21557568.

The previous prime is 47157251. The next prime is 47157301. The reversal of 47157285 is 58275174.

It is not a de Polignac number, because 47157285 - 2⁷ = 47157157 is a prime.

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, 224454 + ... + 224663.

It is an arithmetic number, because the mean of its divisors is an integer number (5389416).

Almost surely, 2^47157285 is an apocalyptic number.

It is an amenable number.

47157285 is a deficient number, since it is larger than the sum of its proper divisors (39073371).

47157285 is a wasteful number, since it uses less digits than its factorization.

47157285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449132.

The product of its digits is 78400, while the sum is 39.

The square root of 47157285 is about 6867.1162069678. The cubic root of 47157285 is about 361.2847230585.

The spelling of 47157285 in words is "forty-seven million, one hundred fifty-seven thousand, two hundred eighty-five".