57928455 has 24 divisors (see below), whose sum is σ = 108134208. Its totient is φ = 28518336.

The previous prime is 57928379. The next prime is 57928463. The reversal of 57928455 is 55482975.

57928455 is a `hidden beast` number, since 579 + 28 + 4 + 55 = 666.

It is not a de Polignac number, because 57928455 - 2⁹ = 57927943 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 57928455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48927 + ... + 50096.

It is an arithmetic number, because the mean of its divisors is an integer number (4505592).

Almost surely, 2^57928455 is an apocalyptic number.

57928455 is a deficient number, since it is larger than the sum of its proper divisors (50205753).

57928455 is a wasteful number, since it uses less digits than its factorization.

57928455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99047 (or 99044 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 57928455 is about 7611.0744970733. The cubic root of 57928455 is about 386.9284365801.

The spelling of 57928455 in words is "fifty-seven million, nine hundred twenty-eight thousand, four hundred fifty-five".