225506566 has 8 divisors (see below), whose sum is σ = 341421480. Its totient is φ = 111699408.

The previous prime is 225506557. The next prime is 225506587. The reversal of 225506566 is 665605522.

225506566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×225506566² = 101706422618224712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526671 + ... + 527098.

It is an arithmetic number, because the mean of its divisors is an integer number (42677685).

Almost surely, 2^225506566 is an apocalyptic number.

225506566 is a deficient number, since it is larger than the sum of its proper divisors (115914914).

225506566 is a wasteful number, since it uses less digits than its factorization.

225506566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053878.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 225506566 is about 15016.8760399758. The cubic root of 225506566 is about 608.6763073209.

The spelling of 225506566 in words is "two hundred twenty-five million, five hundred six thousand, five hundred sixty-six".