15015360225 has 24 divisors (see below), whose sum is σ = 24929297280. Its totient is φ = 7974675520.

The previous prime is 15015360221. The next prime is 15015360253. The reversal of 15015360225 is 52206351051.

It is a happy number.

It is not a de Polignac number, because 15015360225 - 2² = 15015360221 is a prime.

It is a super-2 number, since 2×15015360225² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15015360192 and 15015360201.

It is not an unprimeable number, because it can be changed into a prime (15015360221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400914 + ... + 436763.

It is an arithmetic number, because the mean of its divisors is an integer number (1038720720).

Almost surely, 2^15015360225 is an apocalyptic number.

15015360225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15015360225 is a deficient number, since it is larger than the sum of its proper divisors (9913937055).

15015360225 is a wasteful number, since it uses less digits than its factorization.

15015360225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837929 (or 837924 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 15015360225 in words is "fifteen billion, fifteen million, three hundred sixty thousand, two hundred twenty-five".