57247207 has 8 divisors (see below), whose sum is σ = 59844096. Its totient is φ = 54659352.

The previous prime is 57247199. The next prime is 57247237. The reversal of 57247207 is 70274275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57247207 - 2³ = 57247199 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 (57247237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12958 + ... + 16804.

It is an arithmetic number, because the mean of its divisors is an integer number (7480512).

Almost surely, 2^57247207 is an apocalyptic number.

57247207 is a deficient number, since it is larger than the sum of its proper divisors (2596889).

57247207 is a wasteful number, since it uses less digits than its factorization.

57247207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 57247207 is about 7566.1884063245. The cubic root of 57247207 is about 385.4056712338.

The spelling of 57247207 in words is "fifty-seven million, two hundred forty-seven thousand, two hundred seven".