22553240425 has 6 divisors (see below), whose sum is σ = 27966018158. Its totient is φ = 18042592320.

The previous prime is 22553240419. The next prime is 22553240429. The reversal of 22553240425 is 52404235522.

It can be written as a sum of positive squares in 3 ways, for example, as 6416089 + 22546824336 = 2533^2 + 150156^2 .

It is not a de Polignac number, because 22553240425 - 2²⁹ = 22016369513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22553240429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451064784 + ... + 451064833.

Almost surely, 2^22553240425 is an apocalyptic number.

22553240425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22553240425 is a deficient number, since it is larger than the sum of its proper divisors (5412777733).

22553240425 is an equidigital number, since it uses as much as digits as its factorization.

22553240425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902129627 (or 902129622 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 22553240425 its reverse (52404235522), we get a palindrome (74957475947).

The spelling of 22553240425 in words is "twenty-two billion, five hundred fifty-three million, two hundred forty thousand, four hundred twenty-five".