57081023 has 4 divisors (see below), whose sum is σ = 57516888. Its totient is φ = 56645160.

The previous prime is 57080999. The next prime is 57081029. The reversal of 57081023 is 32018075.

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 57081023 - 2¹² = 57076927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57080983 and 57081001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57081029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217736 + ... + 217997.

It is an arithmetic number, because the mean of its divisors is an integer number (14379222).

Almost surely, 2^57081023 is an apocalyptic number.

57081023 is a deficient number, since it is larger than the sum of its proper divisors (435865).

57081023 is a wasteful number, since it uses less digits than its factorization.

57081023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435864.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 57081023 is about 7555.1984090426. The cubic root of 57081023 is about 385.0323759809.

Adding to 57081023 its reverse (32018075), we get a palindrome (89099098).

The spelling of 57081023 in words is "fifty-seven million, eighty-one thousand, twenty-three".