57405597 has 4 divisors (see below), whose sum is σ = 76540800. Its totient is φ = 38270396.

The previous prime is 57405571. The next prime is 57405599. The reversal of 57405597 is 79550475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57405597 - 2¹⁸ = 57143453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57405599) 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, 9567597 + ... + 9567602.

It is an arithmetic number, because the mean of its divisors is an integer number (19135200).

Almost surely, 2^57405597 is an apocalyptic number.

It is an amenable number.

57405597 is a deficient number, since it is larger than the sum of its proper divisors (19135203).

57405597 is a wasteful number, since it uses less digits than its factorization.

57405597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19135202.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 57405597 is about 7576.6481375342. The cubic root of 57405597 is about 385.7607872017.

The spelling of 57405597 in words is "fifty-seven million, four hundred five thousand, five hundred ninety-seven".