225515233945 has 16 divisors (see below), whose sum is σ = 272630151360. Its totient is φ = 179071560000.

The previous prime is 225515233891. The next prime is 225515233967. The reversal of 225515233945 is 549332515522.

It is not a de Polignac number, because 225515233945 - 2¹¹ = 225515231897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225515233895 and 225515233904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3056995 + ... + 3129895.

It is an arithmetic number, because the mean of its divisors is an integer number (17039384460).

Almost surely, 2^225515233945 is an apocalyptic number.

It is an amenable number.

225515233945 is a deficient number, since it is larger than the sum of its proper divisors (47114917415).

225515233945 is a wasteful number, since it uses less digits than its factorization.

225515233945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77496.

The product of its digits is 1620000, while the sum is 46.

The spelling of 225515233945 in words is "two hundred twenty-five billion, five hundred fifteen million, two hundred thirty-three thousand, nine hundred forty-five".