15225036 has 12 divisors (see below), whose sum is σ = 35525112. Its totient is φ = 5075008.

The previous prime is 15225031. The next prime is 15225079. The reversal of 15225036 is 63052251.

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 = 15224997 and 15225015.

It is not an unprimeable number, because it can be changed into a prime (15225031) 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, 634365 + ... + 634388.

It is an arithmetic number, because the mean of its divisors is an integer number (2960426).

Almost surely, 2^15225036 is an apocalyptic number.

It is an amenable number.

15225036 is an abundant number, since it is smaller than the sum of its proper divisors (20300076).

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

15225036 is a wasteful number, since it uses less digits than its factorization.

15225036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268760 (or 1268758 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 15225036 is about 3901.9272161331. The cubic root of 15225036 is about 247.8483941594.

Adding to 15225036 its reverse (63052251), we get a palindrome (78277287).

The spelling of 15225036 in words is "fifteen million, two hundred twenty-five thousand, thirty-six".