15252420432445 has 32 divisors (see below), whose sum is σ = 20940154732800. Its totient is φ = 10447533874176.

The previous prime is 15252420432377. The next prime is 15252420432493. The reversal of 15252420432445 is 54423402425251.

It is a de Polignac number, because none of the positive numbers 2^k-15252420432445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124155111 + ... + 124277899.

It is an arithmetic number, because the mean of its divisors is an integer number (654379835400).

Almost surely, 2^{15252420432445} is an apocalyptic number.

It is an amenable number.

15252420432445 is a deficient number, since it is larger than the sum of its proper divisors (5687734300355).

15252420432445 is a wasteful number, since it uses less digits than its factorization.

15252420432445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126597.

The product of its (nonzero) digits is 1536000, while the sum is 43.

Adding to 15252420432445 its reverse (54423402425251), we get a palindrome (69675822857696).

The spelling of 15252420432445 in words is "fifteen trillion, two hundred fifty-two billion, four hundred twenty million, four hundred thirty-two thousand, four hundred forty-five".