225415250155 has 4 divisors (see below), whose sum is σ = 270498300192. Its totient is φ = 180332200120.

The previous prime is 225415250143. The next prime is 225415250243. The reversal of 225415250155 is 551052514522.

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

It is not a de Polignac number, because 225415250155 - 2¹⁵ = 225415217387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22541525011 + ... + 22541525020.

It is an arithmetic number, because the mean of its divisors is an integer number (67624575048).

Almost surely, 2^225415250155 is an apocalyptic number.

225415250155 is a deficient number, since it is larger than the sum of its proper divisors (45083050037).

225415250155 is an equidigital number, since it uses as much as digits as its factorization.

225415250155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45083050036.

The product of its (nonzero) digits is 100000, while the sum is 37.

Adding to 225415250155 its reverse (551052514522), we get a palindrome (776467764677).

The spelling of 225415250155 in words is "two hundred twenty-five billion, four hundred fifteen million, two hundred fifty thousand, one hundred fifty-five".