57040534 has 4 divisors (see below), whose sum is σ = 85560804. Its totient is φ = 28520266.

The previous prime is 57040513. The next prime is 57040537. The reversal of 57040534 is 43504075.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57040537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14260132 + ... + 14260135.

It is an arithmetic number, because the mean of its divisors is an integer number (21390201).

Almost surely, 2^57040534 is an apocalyptic number.

57040534 is a deficient number, since it is larger than the sum of its proper divisors (28520270).

57040534 is a wasteful number, since it uses less digits than its factorization.

57040534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28520269.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 57040534 is about 7552.5183879286. The cubic root of 57040534 is about 384.9413167430.

The spelling of 57040534 in words is "fifty-seven million, forty thousand, five hundred thirty-four".