57126243 has 16 divisors (see below), whose sum is σ = 79027200. Its totient is φ = 36678720.

The previous prime is 57126233. The next prime is 57126247. The reversal of 57126243 is 34262175.

It is not a de Polignac number, because 57126243 - 2¹² = 57122147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57126243.

It is not an unprimeable number, because it can be changed into a prime (57126247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6778 + ... + 12656.

It is an arithmetic number, because the mean of its divisors is an integer number (4939200).

Almost surely, 2^57126243 is an apocalyptic number.

57126243 is a deficient number, since it is larger than the sum of its proper divisors (21900957).

57126243 is a wasteful number, since it uses less digits than its factorization.

57126243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6002.

The product of its digits is 10080, while the sum is 30.

The square root of 57126243 is about 7558.1904580395. The cubic root of 57126243 is about 385.1340242894.

The spelling of 57126243 in words is "fifty-seven million, one hundred twenty-six thousand, two hundred forty-three".