22515041425 has 12 divisors (see below), whose sum is σ = 28301100940. Its totient is φ = 17765291520.

The previous prime is 22515041387. The next prime is 22515041449. The reversal of 22515041425 is 52414051522.

It can be written as a sum of positive squares in 6 ways, for example, as 1070074944 + 21444966481 = 32712^2 + 146441^2 .

It is not a de Polignac number, because 22515041425 - 2⁹ = 22515040913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6166680 + ... + 6170329.

Almost surely, 2^22515041425 is an apocalyptic number.

22515041425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22515041425 is a deficient number, since it is larger than the sum of its proper divisors (5786059515).

22515041425 is a wasteful number, since it uses less digits than its factorization.

22515041425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12337092 (or 12337087 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 22515041425 its reverse (52414051522), we get a palindrome (74929092947).

The spelling of 22515041425 in words is "twenty-two billion, five hundred fifteen million, forty-one thousand, four hundred twenty-five".