57011623 has 4 divisors (see below), whose sum is σ = 58087368. Its totient is φ = 55935880.

The previous prime is 57011579. The next prime is 57011627. The reversal of 57011623 is 32611075.

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 57011623 - 2⁹ = 57011111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57011627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537793 + ... + 537898.

It is an arithmetic number, because the mean of its divisors is an integer number (14521842).

Almost surely, 2^57011623 is an apocalyptic number.

57011623 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

57011623 is a deficient number, since it is larger than the sum of its proper divisors (1075745).

57011623 is a wasteful number, since it uses less digits than its factorization.

57011623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075744.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 57011623 is about 7550.6041480136. The cubic root of 57011623 is about 384.8762699046.

Adding to 57011623 its reverse (32611075), we get a palindrome (89622698).

The spelling of 57011623 in words is "fifty-seven million, eleven thousand, six hundred twenty-three".