15225445252 has 12 divisors (see below), whose sum is σ = 26685971536. Its totient is φ = 7600881960.

The previous prime is 15225445247. The next prime is 15225445273. The reversal of 15225445252 is 25254452251.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2957274 + ... + 2962417.

Almost surely, 2^15225445252 is an apocalyptic number.

It is an amenable number.

15225445252 is a deficient number, since it is larger than the sum of its proper divisors (11460526284).

15225445252 is a wasteful number, since it uses less digits than its factorization.

15225445252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5920338 (or 5920336 counting only the distinct ones).

The product of its digits is 160000, while the sum is 37.

It can be divided in two parts, 152254 and 45252, that added together give a triangular number (197506 = T₆₂₈).

The spelling of 15225445252 in words is "fifteen billion, two hundred twenty-five million, four hundred forty-five thousand, two hundred fifty-two".