57106427 has 4 divisors (see below), whose sum is σ = 65264496. Its totient is φ = 48948360.

The previous prime is 57106411. The next prime is 57106453. The reversal of 57106427 is 72460175.

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 57106427 - 2⁴ = 57106411 is a prime.

It is a super-2 number, since 2×57106427² = 6522288009412658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57106393 and 57106402.

It is not an unprimeable number, because it can be changed into a prime (57106327) 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, 4079024 + ... + 4079037.

It is an arithmetic number, because the mean of its divisors is an integer number (16316124).

Almost surely, 2^57106427 is an apocalyptic number.

57106427 is a deficient number, since it is larger than the sum of its proper divisors (8158069).

57106427 is an equidigital number, since it uses as much as digits as its factorization.

57106427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8158068.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 57106427 is about 7556.8794485555. The cubic root of 57106427 is about 385.0894872662.

The spelling of 57106427 in words is "fifty-seven million, one hundred six thousand, four hundred twenty-seven".