15025861228 has 24 divisors (see below), whose sum is σ = 30157928192. Its totient is φ = 6416896464.

The previous prime is 15025861217. The next prime is 15025861229. The reversal of 15025861228 is 82216852051.

It is a super-2 number, since 2×15025861228² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15025861229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940200 + ... + 956047.

Almost surely, 2^15025861228 is an apocalyptic number.

It is an amenable number.

15025861228 is an abundant number, since it is smaller than the sum of its proper divisors (15132066964).

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

15025861228 is a wasteful number, since it uses less digits than its factorization.

15025861228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896541 (or 1896539 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 15025861228 in words is "fifteen billion, twenty-five million, eight hundred sixty-one thousand, two hundred twenty-eight".