225012556145 has 16 divisors (see below), whose sum is σ = 303428305152. Its totient is φ = 158938633920.

The previous prime is 225012556123. The next prime is 225012556177. The reversal of 225012556145 is 541655210522.

It is a de Polignac number, because none of the positive numbers 2^k-225012556145 is a prime.

It is a super-2 number, since 2×225012556145² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225012556099 and 225012556108.

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, 75253541 + ... + 75256530.

It is an arithmetic number, because the mean of its divisors is an integer number (18964269072).

Almost surely, 2^225012556145 is an apocalyptic number.

It is an amenable number.

225012556145 is a deficient number, since it is larger than the sum of its proper divisors (78415749007).

225012556145 is a wasteful number, since it uses less digits than its factorization.

225012556145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150510112.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 225012556145 its reverse (541655210522), we get a palindrome (766667766667).

The spelling of 225012556145 in words is "two hundred twenty-five billion, twelve million, five hundred fifty-six thousand, one hundred forty-five".