506531506 has 32 divisors (see below), whose sum is σ = 847300608. Its totient is φ = 225529920.

The previous prime is 506531503. The next prime is 506531513. The reversal of 506531506 is 605135605.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (506531503) 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, 319191 + ... + 320773.

It is an arithmetic number, because the mean of its divisors is an integer number (26478144).

Almost surely, 2^506531506 is an apocalyptic number.

506531506 is a deficient number, since it is larger than the sum of its proper divisors (340769102).

506531506 is a wasteful number, since it uses less digits than its factorization.

506531506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 506531506 is about 22506.2548194941. The cubic root of 506531506 is about 797.1416253229.

The spelling of 506531506 in words is "five hundred six million, five hundred thirty-one thousand, five hundred six".