57426407 has 4 divisors (see below), whose sum is σ = 57488376. Its totient is φ = 57364440.

The previous prime is 57426403. The next prime is 57426419. The reversal of 57426407 is 70462475.

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 57426407 - 2² = 57426403 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 (57426403) 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, 29573 + ... + 31454.

It is an arithmetic number, because the mean of its divisors is an integer number (14372094).

Almost surely, 2^57426407 is an apocalyptic number.

57426407 is a deficient number, since it is larger than the sum of its proper divisors (61969).

57426407 is an equidigital number, since it uses as much as digits as its factorization.

57426407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61968.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 57426407 is about 7578.0213116618. The cubic root of 57426407 is about 385.8073953872.

The spelling of 57426407 in words is "fifty-seven million, four hundred twenty-six thousand, four hundred seven".