53456857 has 8 divisors (see below), whose sum is σ = 56788992. Its totient is φ = 50145600.

The previous prime is 53456849. The next prime is 53456863. The reversal of 53456857 is 75865435.

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 53456857 - 2³ = 53456849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53456057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232 + ... + 10342.

It is an arithmetic number, because the mean of its divisors is an integer number (7098624).

Almost surely, 2^53456857 is an apocalyptic number.

It is an amenable number.

53456857 is a deficient number, since it is larger than the sum of its proper divisors (3332135).

53456857 is a wasteful number, since it uses less digits than its factorization.

53456857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10439.

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

The square root of 53456857 is about 7311.4196295931. The cubic root of 53456857 is about 376.7047880422.

The spelling of 53456857 in words is "fifty-three million, four hundred fifty-six thousand, eight hundred fifty-seven".