225526615 has 32 divisors (see below), whose sum is σ = 294243840. Its totient is φ = 165492096.

The previous prime is 225526597. The next prime is 225526621. The reversal of 225526615 is 516625522.

It is a cyclic number.

It is not a de Polignac number, because 225526615 - 2⁵ = 225526583 is a prime.

It is a congruent number.

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, 291369 + ... + 292141.

It is an arithmetic number, because the mean of its divisors is an integer number (9195120).

Almost surely, 2^225526615 is an apocalyptic number.

225526615 is a deficient number, since it is larger than the sum of its proper divisors (68717225).

225526615 is a wasteful number, since it uses less digits than its factorization.

225526615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903.

The product of its digits is 36000, while the sum is 34.

The square root of 225526615 is about 15017.5435741003. The cubic root of 225526615 is about 608.6943452135.

The spelling of 225526615 in words is "two hundred twenty-five million, five hundred twenty-six thousand, six hundred fifteen".