225801455 has 32 divisors (see below), whose sum is σ = 301812480. Its totient is φ = 160807680.

The previous prime is 225801451. The next prime is 225801467. The reversal of 225801455 is 554108522.

It is not a de Polignac number, because 225801455 - 2² = 225801451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225801451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 797744 + ... + 798026.

It is an arithmetic number, because the mean of its divisors is an integer number (9431640).

Almost surely, 2^225801455 is an apocalyptic number.

225801455 is a deficient number, since it is larger than the sum of its proper divisors (76011025).

225801455 is a wasteful number, since it uses less digits than its factorization.

225801455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 225801455 is about 15026.6914189385. The cubic root of 225801455 is about 608.9415084169.

Adding to 225801455 its reverse (554108522), we get a palindrome (779909977).

The spelling of 225801455 in words is "two hundred twenty-five million, eight hundred one thousand, four hundred fifty-five".