225122615 has 8 divisors (see below), whose sum is σ = 277448640. Its totient is φ = 175230432.

The previous prime is 225122581. The next prime is 225122617. The reversal of 225122615 is 516221522.

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

It is a cyclic number.

It is not a de Polignac number, because 225122615 - 2¹² = 225118519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225122617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608255 + ... + 608624.

It is an arithmetic number, because the mean of its divisors is an integer number (34681080).

Almost surely, 2^225122615 is an apocalyptic number.

225122615 is a deficient number, since it is larger than the sum of its proper divisors (52326025).

225122615 is a wasteful number, since it uses less digits than its factorization.

225122615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216921.

The product of its digits is 2400, while the sum is 26.

The square root of 225122615 is about 15004.0866099873. The cubic root of 225122615 is about 608.3306638193.

The spelling of 225122615 in words is "two hundred twenty-five million, one hundred twenty-two thousand, six hundred fifteen".