22155131425 has 48 divisors (see below), whose sum is σ = 33951398400. Its totient is φ = 13994127360.

The previous prime is 22155131417. The next prime is 22155131441. The reversal of 22155131425 is 52413155122.

It is not a de Polignac number, because 22155131425 - 2³ = 22155131417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60601 + ... + 219049.

It is an arithmetic number, because the mean of its divisors is an integer number (707320800).

Almost surely, 2^22155131425 is an apocalyptic number.

22155131425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22155131425 is a deficient number, since it is larger than the sum of its proper divisors (11796266975).

22155131425 is a wasteful number, since it uses less digits than its factorization.

22155131425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158530 (or 158525 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

Adding to 22155131425 its reverse (52413155122), we get a palindrome (74568286547).

The spelling of 22155131425 in words is "twenty-two billion, one hundred fifty-five million, one hundred thirty-one thousand, four hundred twenty-five".