225123001615 has 8 divisors (see below), whose sum is σ = 270152826048. Its totient is φ = 180094918560.

The previous prime is 225123001603. The next prime is 225123001657. The reversal of 225123001615 is 516100321522.

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

It is not a de Polignac number, because 225123001615 - 2²⁵ = 225089447183 is a prime.

It is a super-2 number, since 2×225123001615² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131671 + ... + 683800.

It is an arithmetic number, because the mean of its divisors is an integer number (33769103256).

Almost surely, 2^225123001615 is an apocalyptic number.

225123001615 is a deficient number, since it is larger than the sum of its proper divisors (45029824433).

225123001615 is an equidigital number, since it uses as much as digits as its factorization.

225123001615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870689.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 225123001615 in words is "two hundred twenty-five billion, one hundred twenty-three million, one thousand, six hundred fifteen".