57435481 has 4 divisors (see below), whose sum is σ = 57767652. Its totient is φ = 57103312.

The previous prime is 57435473. The next prime is 57435493. The reversal of 57435481 is 18453475.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23853456 + 33582025 = 4884^2 + 5795^2 .

It is a cyclic number.

It is not a de Polignac number, because 57435481 - 2³ = 57435473 is a prime.

It is a super-2 number, since 2×57435481² = 6597668955402722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57435481.

It is not an unprimeable number, because it can be changed into a prime (57435421) 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, 165826 + ... + 166171.

It is an arithmetic number, because the mean of its divisors is an integer number (14441913).

Almost surely, 2^57435481 is an apocalyptic number.

It is an amenable number.

57435481 is a deficient number, since it is larger than the sum of its proper divisors (332171).

57435481 is a wasteful number, since it uses less digits than its factorization.

57435481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332170.

The product of its digits is 67200, while the sum is 37.

The square root of 57435481 is about 7578.6199931122. The cubic root of 57435481 is about 385.8277149122.

The spelling of 57435481 in words is "fifty-seven million, four hundred thirty-five thousand, four hundred eighty-one".