15525223340 has 24 divisors (see below), whose sum is σ = 35566875792. Its totient is φ = 5645535680.

The previous prime is 15525223339. The next prime is 15525223349. The reversal of 15525223340 is 4332252551.

15525223340 is digitally balanced in base 2, because in such base 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 = 15525223297 and 15525223306.

It is not an unprimeable number, because it can be changed into a prime (15525223349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35284379 + ... + 35284818.

It is an arithmetic number, because the mean of its divisors is an integer number (1481953158).

Almost surely, 2^15525223340 is an apocalyptic number.

15525223340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15525223340 is an abundant number, since it is smaller than the sum of its proper divisors (20041652452).

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

15525223340 is a wasteful number, since it uses less digits than its factorization.

15525223340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70569217 (or 70569215 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 15525223340 its reverse (4332252551), we get a palindrome (19857475891).

The spelling of 15525223340 in words is "fifteen billion, five hundred twenty-five million, two hundred twenty-three thousand, three hundred forty".