57046247 has 4 divisors (see below), whose sum is σ = 57199560. Its totient is φ = 56892936.

The previous prime is 57046229. The next prime is 57046273. The reversal of 57046247 is 74264075.

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 57046247 - 2¹⁰ = 57045223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57046207) 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, 76097 + ... + 76842.

It is an arithmetic number, because the mean of its divisors is an integer number (14299890).

Almost surely, 2^57046247 is an apocalyptic number.

57046247 is a deficient number, since it is larger than the sum of its proper divisors (153313).

57046247 is a wasteful number, since it uses less digits than its factorization.

57046247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153312.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 57046247 is about 7552.8965966707. The cubic root of 57046247 is about 384.9541678168.

The spelling of 57046247 in words is "fifty-seven million, forty-six thousand, two hundred forty-seven".