15796719225 has 315 divisors, whose sum is σ = 36159293823. Its totient is φ = 6841285920.

The previous prime is 15796719181. The next prime is 15796719227. The reversal of 15796719225 is 52291769751.

It is a happy number.

The square root of 15796719225 is 125685.

It is a perfect power (a square), and thus also a powerful number.

15796719225 is a `hidden beast` number, since 1 + 579 + 67 + 1 + 9 + 2 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5686818921 + 10109900304 = 75411^2 + 100548^2 .

It is a tau number, because it is divible by the number of its divisors (315).

It is not a de Polignac number, because 15796719225 - 2⁷ = 15796719097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15796719227) by changing a digit.

It is a polite number, since it can be written in 314 ways as a sum of consecutive naturals, for example, 831406266 + ... + 831406284.

Almost surely, 2^15796719225 is an apocalyptic number.

15796719225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15796719225 is the 125685-th square number.

15796719225 is the 62843-rd centered octagonal number.

It is an amenable number.

15796719225 is an abundant number, since it is smaller than the sum of its proper divisors (20362574598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15796719225 is an frugal number, since it uses more digits than its factorization.

15796719225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 34 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 54.

The spelling of 15796719225 in words is "fifteen billion, seven hundred ninety-six million, seven hundred nineteen thousand, two hundred twenty-five".