57533861 has 16 divisors (see below), whose sum is σ = 74047488. Its totient is φ = 43383600.

The previous prime is 57533851. The next prime is 57533863. The reversal of 57533861 is 16833575.

It is a cyclic number.

It is not a de Polignac number, because 57533861 - 2¹⁰ = 57532837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57533863) 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, 9665 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (4627968).

Almost surely, 2^57533861 is an apocalyptic number.

It is an amenable number.

57533861 is a deficient number, since it is larger than the sum of its proper divisors (16513627).

57533861 is a wasteful number, since it uses less digits than its factorization.

57533861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24152.

The product of its digits is 75600, while the sum is 38.

The square root of 57533861 is about 7585.1078436631. The cubic root of 57533861 is about 386.0478812519.

The spelling of 57533861 in words is "fifty-seven million, five hundred thirty-three thousand, eight hundred sixty-one".