15225320000 has 140 divisors (see below), whose sum is σ = 41187203376. Its totient is φ = 5536320000.

The previous prime is 15225319997. The next prime is 15225320009. The reversal of 15225320000 is 2352251.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (15225320009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 422699 + ... + 457301.

Almost surely, 2^15225320000 is an apocalyptic number.

15225320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15225320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20593601688).

15225320000 is an abundant number, since it is smaller than the sum of its proper divisors (25961883376).

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

15225320000 is an equidigital number, since it uses as much as digits as its factorization.

15225320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34646 (or 34621 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 15225320000 its reverse (2352251), we get a palindrome (15227672251).

The spelling of 15225320000 in words is "fifteen billion, two hundred twenty-five million, three hundred twenty thousand".