15225330 has 32 divisors (see below), whose sum is σ = 36793728. Its totient is φ = 4032000.

The previous prime is 15225293. The next prime is 15225337. The reversal of 15225330 is 3352251.

15225330 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15225297 and 15225306.

It is not an unprimeable number, because it can be changed into a prime (15225337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2850 + ... + 6210.

It is an arithmetic number, because the mean of its divisors is an integer number (1149804).

Almost surely, 2^15225330 is an apocalyptic number.

15225330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15225330 is an abundant number, since it is smaller than the sum of its proper divisors (21568398).

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

15225330 is a wasteful number, since it uses less digits than its factorization.

15225330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 15225330 is about 3901.9648896421. The cubic root of 15225330 is about 247.8499894914.

Adding to 15225330 its reverse (3352251), we get a palindrome (18577581).

The spelling of 15225330 in words is "fifteen million, two hundred twenty-five thousand, three hundred thirty".