57006245 has 4 divisors (see below), whose sum is σ = 68407500. Its totient is φ = 45604992.

The previous prime is 57006239. The next prime is 57006281. The reversal of 57006245 is 54260075.

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 29138404 + 27867841 = 5398^2 + 5279^2 .

It is a cyclic number.

It is not a de Polignac number, because 57006245 - 2²⁰ = 55957669 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5700620 + ... + 5700629.

It is an arithmetic number, because the mean of its divisors is an integer number (17101875).

Almost surely, 2^57006245 is an apocalyptic number.

It is an amenable number.

57006245 is a deficient number, since it is larger than the sum of its proper divisors (11401255).

57006245 is a wasteful number, since it uses less digits than its factorization.

57006245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11401254.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 57006245 is about 7550.2480091716. The cubic root of 57006245 is about 384.8641675206.

The spelling of 57006245 in words is "fifty-seven million, six thousand, two hundred forty-five".