15225018036 has 12 divisors (see below), whose sum is σ = 35525042112. Its totient is φ = 5075006008.

The previous prime is 15225018031. The next prime is 15225018059. The reversal of 15225018036 is 63081052251.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 15225017988 and 15225018006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15225018031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634375740 + ... + 634375763.

It is an arithmetic number, because the mean of its divisors is an integer number (2960420176).

Almost surely, 2^15225018036 is an apocalyptic number.

It is an amenable number.

15225018036 is an abundant number, since it is smaller than the sum of its proper divisors (20300024076).

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

15225018036 is a wasteful number, since it uses less digits than its factorization.

15225018036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268751510 (or 1268751508 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 15225018036 in words is "fifteen billion, two hundred twenty-five million, eighteen thousand, thirty-six".