506565426 has 16 divisors (see below), whose sum is σ = 1028253024. Its totient is φ = 166334784.

The previous prime is 506565421. The next prime is 506565431. The reversal of 506565426 is 624565605.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (506565421) and next prime (506565431).

It is a super-2 number, since 2×506565426² = 513217061637122952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (506565421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629655 + ... + 630458.

It is an arithmetic number, because the mean of its divisors is an integer number (64265814).

Almost surely, 2^506565426 is an apocalyptic number.

506565426 is an abundant number, since it is smaller than the sum of its proper divisors (521687598).

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

506565426 is a wasteful number, since it uses less digits than its factorization.

506565426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260185.

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 506565426 is about 22507.0083751706. The cubic root of 506565426 is about 797.1594185171.

The spelling of 506565426 in words is "five hundred six million, five hundred sixty-five thousand, four hundred twenty-six".