15225345242 has 16 divisors (see below), whose sum is σ = 22963315752. Its totient is φ = 7571020800.

The previous prime is 15225345211. The next prime is 15225345257. The reversal of 15225345242 is 24254352251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11729106601 + 3496238641 = 108301^2 + 59129^2 .

It is a super-2 number, since 2×15225345242² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242108 + ... + 298440.

Almost surely, 2^15225345242 is an apocalyptic number.

15225345242 is a deficient number, since it is larger than the sum of its proper divisors (7737970510).

15225345242 is a wasteful number, since it uses less digits than its factorization.

15225345242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57073.

The product of its digits is 96000, while the sum is 35.

Adding to 15225345242 its reverse (24254352251), we get a palindrome (39479697493).

The spelling of 15225345242 in words is "fifteen billion, two hundred twenty-five million, three hundred forty-five thousand, two hundred forty-two".