225497596651 has 4 divisors (see below), whose sum is σ = 232771712704. Its totient is φ = 218223480600.

The previous prime is 225497596637. The next prime is 225497596663. The reversal of 225497596651 is 156695794522.

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: 156695794522 = 2 ⋅78347897261.

It is a cyclic number.

It is not a de Polignac number, because 225497596651 - 2¹⁷ = 225497465579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225497596651.

It is not an unprimeable number, because it can be changed into a prime (225497596601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3637057980 + ... + 3637058041.

It is an arithmetic number, because the mean of its divisors is an integer number (58192928176).

Almost surely, 2^225497596651 is an apocalyptic number.

225497596651 is a deficient number, since it is larger than the sum of its proper divisors (7274116053).

225497596651 is an equidigital number, since it uses as much as digits as its factorization.

225497596651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274116052.

The product of its digits is 40824000, while the sum is 61.

The spelling of 225497596651 in words is "two hundred twenty-five billion, four hundred ninety-seven million, five hundred ninety-six thousand, six hundred fifty-one".