225604261377 has 12 divisors (see below), whose sum is σ = 355497624144. Its totient is φ = 136729855320.

The previous prime is 225604261369. The next prime is 225604261397. The reversal of 225604261377 is 773162406522.

225604261377 is a `hidden beast` number, since 2 + 2 + 5 + 604 + 2 + 6 + 1 + 37 + 7 = 666.

It is not a de Polignac number, because 225604261377 - 2³ = 225604261369 is a prime.

It is a super-2 number, since 2×225604261377² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225604261307) 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 11 ways as a sum of consecutive naturals, for example, 1139415363 + ... + 1139415560.

It is an arithmetic number, because the mean of its divisors is an integer number (29624802012).

Almost surely, 2^225604261377 is an apocalyptic number.

It is an amenable number.

225604261377 is a deficient number, since it is larger than the sum of its proper divisors (129893362767).

225604261377 is a wasteful number, since it uses less digits than its factorization.

225604261377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278830940 (or 2278830937 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

Adding to 225604261377 its reverse (773162406522), we get a palindrome (998766667899).

The spelling of 225604261377 in words is "two hundred twenty-five billion, six hundred four million, two hundred sixty-one thousand, three hundred seventy-seven".