53367857 has 4 divisors (see below), whose sum is σ = 53556720. Its totient is φ = 53178996.

The previous prime is 53367851. The next prime is 53367877. The reversal of 53367857 is 75876335.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75876335 = 5 ⋅15175267.

It is a cyclic number.

It is not a de Polignac number, because 53367857 - 2⁶ = 53367793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53367851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94007 + ... + 94572.

It is an arithmetic number, because the mean of its divisors is an integer number (13389180).

Almost surely, 2^53367857 is an apocalyptic number.

It is an amenable number.

53367857 is a deficient number, since it is larger than the sum of its proper divisors (188863).

53367857 is a wasteful number, since it uses less digits than its factorization.

53367857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188862.

The product of its digits is 529200, while the sum is 44.

The square root of 53367857 is about 7305.3307248885. The cubic root of 53367857 is about 376.4956140691.

The spelling of 53367857 in words is "fifty-three million, three hundred sixty-seven thousand, eight hundred fifty-seven".