57189471 has 4 divisors (see below), whose sum is σ = 76252632. Its totient is φ = 38126312.

The previous prime is 57189469. The next prime is 57189481. The reversal of 57189471 is 17498175.

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 57189471 - 2¹ = 57189469 is a prime.

It is a super-3 number, since 3×57189471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57189481) 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, 9531576 + ... + 9531581.

It is an arithmetic number, because the mean of its divisors is an integer number (19063158).

Almost surely, 2^57189471 is an apocalyptic number.

57189471 is a deficient number, since it is larger than the sum of its proper divisors (19063161).

57189471 is a wasteful number, since it uses less digits than its factorization.

57189471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19063160.

The product of its digits is 70560, while the sum is 42.

The square root of 57189471 is about 7562.3720485044. The cubic root of 57189471 is about 385.2760621938.

The spelling of 57189471 in words is "fifty-seven million, one hundred eighty-nine thousand, four hundred seventy-one".