15413221225 has 12 divisors (see below), whose sum is σ = 19578551580. Its totient is φ = 12029830400.

The previous prime is 15413221193. The next prime is 15413221259. The reversal of 15413221225 is 52212231451.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 633226896 + 14779994329 = 25164^2 + 121573^2 .

It is not a de Polignac number, because 15413221225 - 2⁵ = 15413221193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15413221193 and 15413221202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7517620 + ... + 7519669.

It is an arithmetic number, because the mean of its divisors is an integer number (1631545965).

Almost surely, 2^15413221225 is an apocalyptic number.

It is an amenable number.

15413221225 is a deficient number, since it is larger than the sum of its proper divisors (4165330355).

15413221225 is a wasteful number, since it uses less digits than its factorization.

15413221225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15037340 (or 15037335 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

Adding to 15413221225 its reverse (52212231451), we get a palindrome (67625452676).

The spelling of 15413221225 in words is "fifteen billion, four hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-five".