57047895 has 72 divisors (see below), whose sum is σ = 107699904. Its totient is φ = 28973376.

The previous prime is 57047863. The next prime is 57047897. The reversal of 57047895 is 59874075.

57047895 is a `hidden beast` number, since 570 + 4 + 78 + 9 + 5 = 666.

It is not a de Polignac number, because 57047895 - 2⁵ = 57047863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 57047895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57047897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1213762 + ... + 1213808.

It is an arithmetic number, because the mean of its divisors is an integer number (1495832).

Almost surely, 2^57047895 is an apocalyptic number.

57047895 is a deficient number, since it is larger than the sum of its proper divisors (50652009).

57047895 is an frugal number, since it uses more digits than its factorization.

57047895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 57047895 is about 7553.0056930999. The cubic root of 57047895 is about 384.9578747411.

The spelling of 57047895 in words is "fifty-seven million, forty-seven thousand, eight hundred ninety-five".