57797145 has 160 divisors (see below), whose sum is σ = 132422400. Its totient is φ = 23514624.

The previous prime is 57797119. The next prime is 57797153. The reversal of 57797145 is 54179775.

57797145 = T₁₇₄₉ + T₁₇₅₀ + ... + T₁₇₈₅.

57797145 is a `hidden beast` number, since 577 + 9 + 71 + 4 + 5 = 666.

It is not a de Polignac number, because 57797145 - 2⁹ = 57796633 is a prime.

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

Its product of digits (308700) is a multiple of the sum of its prime divisors (100).

It is a self number, because there is not a number n which added to its sum of digits gives 57797145.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1562067 + ... + 1562103.

It is an arithmetic number, because the mean of its divisors is an integer number (827640).

Almost surely, 2^57797145 is an apocalyptic number.

It is an amenable number.

57797145 is an abundant number, since it is smaller than the sum of its proper divisors (74625255).

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

57797145 is a wasteful number, since it uses less digits than its factorization.

57797145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 100 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The square root of 57797145 is about 7602.4433572372. The cubic root of 57797145 is about 386.6358572195.

The spelling of 57797145 in words is "fifty-seven million, seven hundred ninety-seven thousand, one hundred forty-five".