15445625452 has 24 divisors (see below), whose sum is σ = 27697460112. Its totient is φ = 7532179200.

The previous prime is 15445625443. The next prime is 15445625467. The reversal of 15445625452 is 25452654451.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 15445625399 and 15445625408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616327 + ... + 640897.

It is an arithmetic number, because the mean of its divisors is an integer number (1154060838).

Almost surely, 2^15445625452 is an apocalyptic number.

It is an amenable number.

15445625452 is a deficient number, since it is larger than the sum of its proper divisors (12251834660).

15445625452 is a wasteful number, since it uses less digits than its factorization.

15445625452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28449 (or 28447 counting only the distinct ones).

The product of its digits is 960000, while the sum is 43.

The spelling of 15445625452 in words is "fifteen billion, four hundred forty-five million, six hundred twenty-five thousand, four hundred fifty-two".