57043861 has 4 divisors (see below), whose sum is σ = 65192992. Its totient is φ = 48894732.

The previous prime is 57043859. The next prime is 57043913. The reversal of 57043861 is 16834075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57043861 - 2¹ = 57043859 is a prime.

It is a super-3 number, since 3×57043861³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57043561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4074555 + ... + 4074568.

It is an arithmetic number, because the mean of its divisors is an integer number (16298248).

Almost surely, 2^57043861 is an apocalyptic number.

It is an amenable number.

57043861 is a deficient number, since it is larger than the sum of its proper divisors (8149131).

57043861 is an equidigital number, since it uses as much as digits as its factorization.

57043861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8149130.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 57043861 is about 7552.7386423734. The cubic root of 57043861 is about 384.9488007476.

The spelling of 57043861 in words is "fifty-seven million, forty-three thousand, eight hundred sixty-one".