57125807 has 4 divisors (see below), whose sum is σ = 57767760. Its totient is φ = 56483856.

The previous prime is 57125791. The next prime is 57125869. The reversal of 57125807 is 70852175.

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 57125807 - 2⁴ = 57125791 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 (57125407) 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, 320843 + ... + 321020.

It is an arithmetic number, because the mean of its divisors is an integer number (14441940).

Almost surely, 2^57125807 is an apocalyptic number.

57125807 is a deficient number, since it is larger than the sum of its proper divisors (641953).

57125807 is an equidigital number, since it uses as much as digits as its factorization.

57125807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641952.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 57125807 is about 7558.1616151019. The cubic root of 57125807 is about 385.1330444778.

The spelling of 57125807 in words is "fifty-seven million, one hundred twenty-five thousand, eight hundred seven".