507639066 has 64 divisors (see below), whose sum is σ = 1133346816. Its totient is φ = 150292800.

The previous prime is 507639061. The next prime is 507639071. The reversal of 507639066 is 660936705.

It is an interprime number because it is at equal distance from previous prime (507639061) and next prime (507639071).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (507639061) 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, 594696 + ... + 595548.

It is an arithmetic number, because the mean of its divisors is an integer number (17708544).

Almost surely, 2^507639066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 507639066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566673408).

507639066 is an abundant number, since it is smaller than the sum of its proper divisors (625707750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

507639066 is a wasteful number, since it uses less digits than its factorization.

507639066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 507639066 is about 22530.8469880739. The cubic root of 507639066 is about 797.7222009027.

The spelling of 507639066 in words is "five hundred seven million, six hundred thirty-nine thousand, sixty-six".