225161455 has 8 divisors (see below), whose sum is σ = 273614400. Its totient is φ = 177848736.

The previous prime is 225161449. The next prime is 225161477. The reversal of 225161455 is 554161522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225161455 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284620 + ... + 285409.

It is an arithmetic number, because the mean of its divisors is an integer number (34201800).

Almost surely, 2^225161455 is an apocalyptic number.

225161455 is a deficient number, since it is larger than the sum of its proper divisors (48452945).

225161455 is an equidigital number, since it uses as much as digits as its factorization.

225161455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570113.

The product of its digits is 12000, while the sum is 31.

The square root of 225161455 is about 15005.3808682086. The cubic root of 225161455 is about 608.3656465394.

The spelling of 225161455 in words is "two hundred twenty-five million, one hundred sixty-one thousand, four hundred fifty-five".