57242823 has 16 divisors (see below), whose sum is σ = 83667072. Its totient is φ = 34524000.

The previous prime is 57242821. The next prime is 57242849. The reversal of 57242823 is 32824275.

It is not a de Polignac number, because 57242823 - 2¹ = 57242821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57242821) 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, 2853 + ... + 11073.

It is an arithmetic number, because the mean of its divisors is an integer number (5229192).

Almost surely, 2^57242823 is an apocalyptic number.

57242823 is a deficient number, since it is larger than the sum of its proper divisors (26424249).

57242823 is a wasteful number, since it uses less digits than its factorization.

57242823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8446.

The product of its digits is 26880, while the sum is 33.

The square root of 57242823 is about 7565.8986908364. The cubic root of 57242823 is about 385.3958328406.

The spelling of 57242823 in words is "fifty-seven million, two hundred forty-two thousand, eight hundred twenty-three".