57000023 has 4 divisors (see below), whose sum is σ = 57017160. Its totient is φ = 56982888.

The previous prime is 57000011. The next prime is 57000037. The reversal of 57000023 is 32000075.

57000023 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 cyclic number.

It is not a de Polignac number, because 57000023 - 2²² = 52805719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56999965 and 57000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57000523) 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 in 3 ways as a sum of consecutive naturals, for example, 1793 + ... + 10826.

It is an arithmetic number, because the mean of its divisors is an integer number (14254290).

Almost surely, 2^57000023 is an apocalyptic number.

57000023 is a deficient number, since it is larger than the sum of its proper divisors (17137).

57000023 is a wasteful number, since it uses less digits than its factorization.

57000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17136.

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 57000023 is about 7549.8359584828. The cubic root of 57000023 is about 384.8501648911.

Adding to 57000023 its reverse (32000075), we get a palindrome (89000098).

The spelling of 57000023 in words is "fifty-seven million, twenty-three", and thus it is an aban number and an uban number.