57233217 has 4 divisors (see below), whose sum is σ = 76310960. Its totient is φ = 38155476.

The previous prime is 57233179. The next prime is 57233219. The reversal of 57233217 is 71233275.

57233217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 57233217 - 2⁸ = 57232961 is a prime.

It is a super-2 number, since 2×57233217² = 6551282256338178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57233219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9538867 + ... + 9538872.

It is an arithmetic number, because the mean of its divisors is an integer number (19077740).

Almost surely, 2^57233217 is an apocalyptic number.

It is an amenable number.

57233217 is a deficient number, since it is larger than the sum of its proper divisors (19077743).

57233217 is a wasteful number, since it uses less digits than its factorization.

57233217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19077742.

The product of its digits is 8820, while the sum is 30.

The square root of 57233217 is about 7565.2638420613. The cubic root of 57233217 is about 385.3742736926.

The spelling of 57233217 in words is "fifty-seven million, two hundred thirty-three thousand, two hundred seventeen".