507223905 has 32 divisors (see below), whose sum is σ = 863913600. Its totient is φ = 253389312.

The previous prime is 507223901. The next prime is 507223907. The reversal of 507223905 is 509322705.

It is not a de Polignac number, because 507223905 - 2² = 507223901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (507223901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15367 + ... + 35363.

It is an arithmetic number, because the mean of its divisors is an integer number (26997300).

Almost surely, 2^507223905 is an apocalyptic number.

It is an amenable number.

507223905 is a deficient number, since it is larger than the sum of its proper divisors (356689695).

507223905 is a wasteful number, since it uses less digits than its factorization.

507223905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20113.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 507223905 is about 22521.6319346534. The cubic root of 507223905 is about 797.5046753066.

The spelling of 507223905 in words is "five hundred seven million, two hundred twenty-three thousand, nine hundred five".