57231478 has 4 divisors (see below), whose sum is σ = 85847220. Its totient is φ = 28615738.

The previous prime is 57231437. The next prime is 57231479. The reversal of 57231478 is 87413275.

57231478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57231479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14307868 + ... + 14307871.

It is an arithmetic number, because the mean of its divisors is an integer number (21461805).

Almost surely, 2^57231478 is an apocalyptic number.

57231478 is a deficient number, since it is larger than the sum of its proper divisors (28615742).

57231478 is a wasteful number, since it uses less digits than its factorization.

57231478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28615741.

The product of its digits is 47040, while the sum is 37.

The square root of 57231478 is about 7565.1489079859. The cubic root of 57231478 is about 385.3703705242.

The spelling of 57231478 in words is "fifty-seven million, two hundred thirty-one thousand, four hundred seventy-eight".