563625426 has 64 divisors (see below), whose sum is σ = 1413635328. Its totient is φ = 145836288.

The previous prime is 563625397. The next prime is 563625431. The reversal of 563625426 is 624526365.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19200 + ... + 38676.

It is an arithmetic number, because the mean of its divisors is an integer number (22088052).

Almost surely, 2^563625426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563625426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706817664).

563625426 is an abundant number, since it is smaller than the sum of its proper divisors (850009902).

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

563625426 is a wasteful number, since it uses less digits than its factorization.

563625426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19555.

The product of its digits is 259200, while the sum is 39.

The square root of 563625426 is about 23740.7966589161. The cubic root of 563625426 is about 826.0319750690.

The spelling of 563625426 in words is "five hundred sixty-three million, six hundred twenty-five thousand, four hundred twenty-six".