15225355340 has 72 divisors (see below), whose sum is σ = 34723810800. Its totient is φ = 5605127424.

The previous prime is 15225355319. The next prime is 15225355349. The reversal of 15225355340 is 4355352251.

It is a super-2 number, since 2×15225355340² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15225355340.

It is not an unprimeable number, because it can be changed into a prime (15225355349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1173167 + ... + 1186073.

It is an arithmetic number, because the mean of its divisors is an integer number (482275150).

Almost surely, 2^15225355340 is an apocalyptic number.

15225355340 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 15225355340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17361905400).

15225355340 is an abundant number, since it is smaller than the sum of its proper divisors (19498455460).

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

15225355340 is a wasteful number, since it uses less digits than its factorization.

15225355340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13291 (or 13276 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 15225355340 in words is "fifteen billion, two hundred twenty-five million, three hundred fifty-five thousand, three hundred forty".