566221425 has 48 divisors (see below), whose sum is σ = 1167163392. Its totient is φ = 235310400.

The previous prime is 566221421. The next prime is 566221457. The reversal of 566221425 is 524122665.

It is not a de Polignac number, because 566221425 - 2² = 566221421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (566221421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43249 + ... + 54798.

It is an arithmetic number, because the mean of its divisors is an integer number (24315904).

Almost surely, 2^566221425 is an apocalyptic number.

566221425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

566221425 is an abundant number, since it is smaller than the sum of its proper divisors (600941967).

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

566221425 is a wasteful number, since it uses less digits than its factorization.

566221425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98078 (or 98073 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 566221425 is about 23795.4076451739. The cubic root of 566221425 is about 827.2982382179.

The spelling of 566221425 in words is "five hundred sixty-six million, two hundred twenty-one thousand, four hundred twenty-five".