507564601221 has 16 divisors (see below), whose sum is σ = 687221203968. Its totient is φ = 333147606000.

The previous prime is 507564601177. The next prime is 507564601231. The reversal of 507564601221 is 122106465705.

It is not a de Polignac number, because 507564601221 - 2⁶ = 507564601157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 507564601221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507564601231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298755 + ... + 1050896.

It is an arithmetic number, because the mean of its divisors is an integer number (42951325248).

Almost surely, 2^507564601221 is an apocalyptic number.

It is an amenable number.

507564601221 is a deficient number, since it is larger than the sum of its proper divisors (179656602747).

507564601221 is a wasteful number, since it uses less digits than its factorization.

507564601221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351592.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 507564601221 in words is "five hundred seven billion, five hundred sixty-four million, six hundred one thousand, two hundred twenty-one".