15125012225 has 24 divisors (see below), whose sum is σ = 19852524000. Its totient is φ = 11399063040.

The previous prime is 15125012209. The next prime is 15125012233. The reversal of 15125012225 is 52221052151.

It is a happy number.

It is not a de Polignac number, because 15125012225 - 2⁴ = 15125012209 is a prime.

It is a super-3 number, since 3×15125012225³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15125012194 and 15125012203.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3920 + ... + 173969.

It is an arithmetic number, because the mean of its divisors is an integer number (827188500).

Almost surely, 2^15125012225 is an apocalyptic number.

It is an amenable number.

15125012225 is a deficient number, since it is larger than the sum of its proper divisors (4727511775).

15125012225 is a wasteful number, since it uses less digits than its factorization.

15125012225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178097 (or 178092 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 15125012225 its reverse (52221052151), we get a palindrome (67346064376).

The spelling of 15125012225 in words is "fifteen billion, one hundred twenty-five million, twelve thousand, two hundred twenty-five".