57453865 has 8 divisors (see below), whose sum is σ = 78793920. Its totient is φ = 39396912.

The previous prime is 57453857. The next prime is 57453871. The reversal of 57453865 is 56835475.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57453865 - 2³ = 57453857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820735 + ... + 820804.

It is an arithmetic number, because the mean of its divisors is an integer number (9849240).

Almost surely, 2^57453865 is an apocalyptic number.

It is an amenable number.

57453865 is a deficient number, since it is larger than the sum of its proper divisors (21340055).

57453865 is a wasteful number, since it uses less digits than its factorization.

57453865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641551.

The product of its digits is 504000, while the sum is 43.

The square root of 57453865 is about 7579.8327817967. The cubic root of 57453865 is about 385.8688758807.

The spelling of 57453865 in words is "fifty-seven million, four hundred fifty-three thousand, eight hundred sixty-five".