22400255525 has 24 divisors (see below), whose sum is σ = 28434980640. Its totient is φ = 17495634240.

The previous prime is 22400255503. The next prime is 22400255539. The reversal of 22400255525 is 52555200422.

It is not a de Polignac number, because 22400255525 - 2⁶ = 22400255461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22400255491 and 22400255500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4016639 + ... + 4022211.

It is an arithmetic number, because the mean of its divisors is an integer number (1184790860).

Almost surely, 2^22400255525 is an apocalyptic number.

22400255525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22400255525 is a deficient number, since it is larger than the sum of its proper divisors (6034725115).

22400255525 is a wasteful number, since it uses less digits than its factorization.

22400255525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9365 (or 9360 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

Adding to 22400255525 its reverse (52555200422), we get a palindrome (74955455947).

The spelling of 22400255525 in words is "twenty-two billion, four hundred million, two hundred fifty-five thousand, five hundred twenty-five".