57503947 has 4 divisors (see below), whose sum is σ = 57521376. Its totient is φ = 57486520.

The previous prime is 57503939. The next prime is 57503951. The reversal of 57503947 is 74930575.

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 57503947 - 2³ = 57503939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57503917) 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, 2083 + ... + 10924.

It is an arithmetic number, because the mean of its divisors is an integer number (14380344).

Almost surely, 2^57503947 is an apocalyptic number.

57503947 is a deficient number, since it is larger than the sum of its proper divisors (17429).

57503947 is a wasteful number, since it uses less digits than its factorization.

57503947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17428.

The product of its (nonzero) digits is 132300, while the sum is 40.

The square root of 57503947 is about 7583.1356970583. The cubic root of 57503947 is about 385.9809627559.

The spelling of 57503947 in words is "fifty-seven million, five hundred three thousand, nine hundred forty-seven".