22755772125 has 32 divisors (see below), whose sum is σ = 42072900480. Its totient is φ = 12136410000.

The previous prime is 22755772121. The next prime is 22755772157. The reversal of 22755772125 is 52127755722.

It is a happy number.

22755772125 is a `hidden beast` number, since 2 + 2 + 7 + 557 + 72 + 1 + 25 = 666.

It is not a de Polignac number, because 22755772125 - 2² = 22755772121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22755772121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3367851 + ... + 3374600.

It is an arithmetic number, because the mean of its divisors is an integer number (1314778140).

Almost surely, 2^22755772125 is an apocalyptic number.

22755772125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22755772125 is a deficient number, since it is larger than the sum of its proper divisors (19317128355).

22755772125 is an equidigital number, since it uses as much as digits as its factorization.

22755772125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6742475 (or 6742459 counting only the distinct ones).

The product of its digits is 686000, while the sum is 45.

The spelling of 22755772125 in words is "twenty-two billion, seven hundred fifty-five million, seven hundred seventy-two thousand, one hundred twenty-five".