507205990 has 32 divisors (see below), whose sum is σ = 946820160. Its totient is φ = 195467904.

The previous prime is 507205981. The next prime is 507206017. The reversal of 507205990 is 99502705.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31456 + ... + 44764.

It is an arithmetic number, because the mean of its divisors is an integer number (29588130).

Almost surely, 2^507205990 is an apocalyptic number.

507205990 is a deficient number, since it is larger than the sum of its proper divisors (439614170).

507205990 is a wasteful number, since it uses less digits than its factorization.

507205990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13456.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 507205990 is about 22521.2342024144. The cubic root of 507205990 is about 797.4952859854.

The spelling of 507205990 in words is "five hundred seven million, two hundred five thousand, nine hundred ninety".