57435491 has 4 divisors (see below), whose sum is σ = 57569184. Its totient is φ = 57301800.

The previous prime is 57435473. The next prime is 57435493. The reversal of 57435491 is 19453475.

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 57435491 - 2¹⁰ = 57434467 is a prime.

It is a super-2 number, since 2×57435491² = 6597671252822162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57435493) 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, 66200 + ... + 67061.

It is an arithmetic number, because the mean of its divisors is an integer number (14392296).

Almost surely, 2^57435491 is an apocalyptic number.

57435491 is a deficient number, since it is larger than the sum of its proper divisors (133693).

57435491 is a wasteful number, since it uses less digits than its factorization.

57435491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133692.

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

The square root of 57435491 is about 7578.6206528629. The cubic root of 57435491 is about 385.8277373042.

The spelling of 57435491 in words is "fifty-seven million, four hundred thirty-five thousand, four hundred ninety-one".