15252211625 has 24 divisors (see below), whose sum is σ = 22142484936. Its totient is φ = 10458655200.

The previous prime is 15252211621. The next prime is 15252211631. The reversal of 15252211625 is 52611225251.

It is a happy number.

15252211625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 403326889 + 14848884736 = 20083^2 + 121856^2 .

It is not a de Polignac number, because 15252211625 - 2² = 15252211621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15252211591 and 15252211600.

It is not an unprimeable number, because it can be changed into a prime (15252211621) 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 23 ways as a sum of consecutive naturals, for example, 1238954 + ... + 1251203.

It is an arithmetic number, because the mean of its divisors is an integer number (922603539).

Almost surely, 2^15252211625 is an apocalyptic number.

It is an amenable number.

15252211625 is a deficient number, since it is larger than the sum of its proper divisors (6890273311).

15252211625 is an equidigital number, since it uses as much as digits as its factorization.

15252211625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490186 (or 2490169 counting only the distinct ones).

The product of its digits is 12000, while the sum is 32.

Adding to 15252211625 its reverse (52611225251), we get a palindrome (67863436876).

The spelling of 15252211625 in words is "fifteen billion, two hundred fifty-two million, two hundred eleven thousand, six hundred twenty-five".