225797088551 has 4 divisors (see below), whose sum is σ = 226177859952. Its totient is φ = 225416317152.

The previous prime is 225797088527. The next prime is 225797088557. The reversal of 225797088551 is 155880797522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155880797522 = 2 ⋅77940398761.

It is a cyclic number.

It is not a de Polignac number, because 225797088551 - 2³⁴ = 208617219367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225797088557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190384811 + ... + 190385996.

It is an arithmetic number, because the mean of its divisors is an integer number (56544464988).

Almost surely, 2^225797088551 is an apocalyptic number.

225797088551 is a deficient number, since it is larger than the sum of its proper divisors (380771401).

225797088551 is an equidigital number, since it uses as much as digits as its factorization.

225797088551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380771400.

The product of its (nonzero) digits is 14112000, while the sum is 59.

The spelling of 225797088551 in words is "two hundred twenty-five billion, seven hundred ninety-seven million, eighty-eight thousand, five hundred fifty-one".