225777453607 has 4 divisors (see below), whose sum is σ = 225907137976. Its totient is φ = 225647769240.

The previous prime is 225777453593. The next prime is 225777453631. The reversal of 225777453607 is 706354777522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225777453607 is a prime.

It is a super-2 number, since 2×225777453607² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225777453697) 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, 64839573 + ... + 64843054.

It is an arithmetic number, because the mean of its divisors is an integer number (56476784494).

Almost surely, 2^225777453607 is an apocalyptic number.

225777453607 is a deficient number, since it is larger than the sum of its proper divisors (129684369).

225777453607 is a wasteful number, since it uses less digits than its factorization.

225777453607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129684368.

The product of its (nonzero) digits is 17287200, while the sum is 55.

The spelling of 225777453607 in words is "two hundred twenty-five billion, seven hundred seventy-seven million, four hundred fifty-three thousand, six hundred seven".