57512207 has 8 divisors (see below), whose sum is σ = 61234992. Its totient is φ = 53827200.

The previous prime is 57512177. The next prime is 57512219. The reversal of 57512207 is 70221575.

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 57512207 - 2¹² = 57508111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57512207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57512227) 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, 6269 + ... + 12422.

It is an arithmetic number, because the mean of its divisors is an integer number (7654374).

Almost surely, 2^57512207 is an apocalyptic number.

57512207 is a deficient number, since it is larger than the sum of its proper divisors (3722785).

57512207 is a wasteful number, since it uses less digits than its factorization.

57512207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18889.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 57512207 is about 7583.6803070805. The cubic root of 57512207 is about 385.9994429373. Note that the first 3 decimals are identical.

The spelling of 57512207 in words is "fifty-seven million, five hundred twelve thousand, two hundred seven".