565155426 has 48 divisors (see below), whose sum is σ = 1246335552. Its totient is φ = 170718240.

The previous prime is 565155421. The next prime is 565155431. The reversal of 565155426 is 624551565.

It is a happy number.

565155426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (565155421) and next prime (565155431).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (565155421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269755 + ... + 271841.

It is an arithmetic number, because the mean of its divisors is an integer number (25965324).

Almost surely, 2^565155426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 565155426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623167776).

565155426 is an abundant number, since it is smaller than the sum of its proper divisors (681180126).

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

565155426 is a wasteful number, since it uses less digits than its factorization.

565155426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487 (or 2476 counting only the distinct ones).

The product of its digits is 180000, while the sum is 39.

The square root of 565155426 is about 23772.9978336768. The cubic root of 565155426 is about 826.7787399720.

The spelling of 565155426 in words is "five hundred sixty-five million, one hundred fifty-five thousand, four hundred twenty-six".