57239093 has 4 divisors (see below), whose sum is σ = 57269568. Its totient is φ = 57208620.

The previous prime is 57239059. The next prime is 57239101. The reversal of 57239093 is 39093275.

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 a cyclic number.

It is not a de Polignac number, because 57239093 - 2¹⁴ = 57222709 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 (57239033) 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, 12221 + ... + 16242.

It is an arithmetic number, because the mean of its divisors is an integer number (14317392).

Almost surely, 2^57239093 is an apocalyptic number.

It is an amenable number.

57239093 is a deficient number, since it is larger than the sum of its proper divisors (30475).

57239093 is a wasteful number, since it uses less digits than its factorization.

57239093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30474.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 57239093 is about 7565.6521860313. The cubic root of 57239093 is about 385.3874617319.

The spelling of 57239093 in words is "fifty-seven million, two hundred thirty-nine thousand, ninety-three".