15244252012 has 24 divisors (see below), whose sum is σ = 29151137232. Its totient is φ = 6917664000.

The previous prime is 15244251977. The next prime is 15244252013. The reversal of 15244252012 is 21025244251.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15244252013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261793 + ... + 314680.

It is an arithmetic number, because the mean of its divisors is an integer number (1214630718).

Almost surely, 2^15244252012 is an apocalyptic number.

It is an amenable number.

15244252012 is a deficient number, since it is larger than the sum of its proper divisors (13906885220).

15244252012 is a wasteful number, since it uses less digits than its factorization.

15244252012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577089 (or 577087 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 15244252012 its reverse (21025244251), we get a palindrome (36269496263).

The spelling of 15244252012 in words is "fifteen billion, two hundred forty-four million, two hundred fifty-two thousand, twelve".