57478423 has 2 divisors, whose sum is σ = 57478424. Its totient is φ = 57478422.

The previous prime is 57478397. The next prime is 57478441. The reversal of 57478423 is 32487475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57478423 - 2⁹ = 57477911 is a prime.

It is a super-2 number, since 2×57478423² = 6607538221133858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57478523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28739211 + 28739212.

It is an arithmetic number, because the mean of its divisors is an integer number (28739212).

Almost surely, 2^57478423 is an apocalyptic number.

57478423 is a deficient number, since it is larger than the sum of its proper divisors (1).

57478423 is an equidigital number, since it uses as much as digits as its factorization.

57478423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 40.

The square root of 57478423 is about 7581.4525653070. The cubic root of 57478423 is about 385.9238464674.

The spelling of 57478423 in words is "fifty-seven million, four hundred seventy-eight thousand, four hundred twenty-three".