57223807 has 4 divisors (see below), whose sum is σ = 57480640. Its totient is φ = 56966976.

The previous prime is 57223781. The next prime is 57223847. The reversal of 57223807 is 70832275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57223807 - 2¹⁵ = 57191039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57223847) 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, 128082 + ... + 128527.

It is an arithmetic number, because the mean of its divisors is an integer number (14370160).

Almost surely, 2^57223807 is an apocalyptic number.

57223807 is a deficient number, since it is larger than the sum of its proper divisors (256833).

57223807 is a wasteful number, since it uses less digits than its factorization.

57223807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256832.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 57223807 is about 7564.6418950272. The cubic root of 57223807 is about 385.3531520965.

The spelling of 57223807 in words is "fifty-seven million, two hundred twenty-three thousand, eight hundred seven".