999960225 has 48 divisors (see below), whose sum is σ = 1807247424. Its totient is φ = 483840000.

The previous prime is 999960163. The next prime is 999960229. The reversal of 999960225 is 522069999.

It is not a de Polignac number, because 999960225 - 2⁷ = 999960097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (999960229) 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, 554325 + ... + 556125.

It is an arithmetic number, because the mean of its divisors is an integer number (37650988).

Almost surely, 2^999960225 is an apocalyptic number.

It is an amenable number.

999960225 is a deficient number, since it is larger than the sum of its proper divisors (807287199).

999960225 is a wasteful number, since it uses less digits than its factorization.

999960225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498 (or 2493 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 51.

The square root of 999960225 is about 31622.1476974604. The cubic root of 999960225 is about 999.9867414909.

The spelling of 999960225 in words is "nine hundred ninety-nine million, nine hundred sixty thousand, two hundred twenty-five".