15225320342426 has 4 divisors (see below), whose sum is σ = 22837980513642. Its totient is φ = 7612660171212.

The previous prime is 15225320342413. The next prime is 15225320342437. The reversal of 15225320342426 is 62424302352251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14031010148401 + 1194310194025 = 3745799^2 + 1092845^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806330085605 + ... + 3806330085608.

Almost surely, 2^{15225320342426} is an apocalyptic number.

15225320342426 is a deficient number, since it is larger than the sum of its proper divisors (7612660171216).

15225320342426 is an equidigital number, since it uses as much as digits as its factorization.

15225320342426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7612660171215.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 15225320342426 its reverse (62424302352251), we get a palindrome (77649622694677).

The spelling of 15225320342426 in words is "fifteen trillion, two hundred twenty-five billion, three hundred twenty million, three hundred forty-two thousand, four hundred twenty-six".