57091423 has 8 divisors (see below), whose sum is σ = 60616080. Its totient is φ = 53585280.

The previous prime is 57091421. The next prime is 57091427. The reversal of 57091423 is 32419075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57091423 - 2¹ = 57091421 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 (57091421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013 + ... + 10873.

It is an arithmetic number, because the mean of its divisors is an integer number (7577010).

Almost surely, 2^57091423 is an apocalyptic number.

57091423 is a deficient number, since it is larger than the sum of its proper divisors (3524657).

57091423 is a wasteful number, since it uses less digits than its factorization.

57091423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9257.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 57091423 is about 7555.8866455235. The cubic root of 57091423 is about 385.0557584954.

The spelling of 57091423 in words is "fifty-seven million, ninety-one thousand, four hundred twenty-three".