225776555501 has 16 divisors (see below), whose sum is σ = 273242388096. Its totient is φ = 182116548096.

The previous prime is 225776555497. The next prime is 225776555507. The reversal of 225776555501 is 105555677522.

It is not a de Polignac number, because 225776555501 - 2² = 225776555497 is a prime.

It is a super-2 number, since 2×225776555501² (a number of 24 digits) contains 22 as substring.

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 225776555501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225776555507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884945 + ... + 1111161.

It is an arithmetic number, because the mean of its divisors is an integer number (17077649256).

Almost surely, 2^225776555501 is an apocalyptic number.

It is an amenable number.

225776555501 is a deficient number, since it is larger than the sum of its proper divisors (47465832595).

225776555501 is a wasteful number, since it uses less digits than its factorization.

225776555501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234628.

The product of its (nonzero) digits is 3675000, while the sum is 50.

The spelling of 225776555501 in words is "two hundred twenty-five billion, seven hundred seventy-six million, five hundred fifty-five thousand, five hundred one".