225290277505 has 32 divisors (see below), whose sum is σ = 290274650784. Its totient is φ = 167247691776.

The previous prime is 225290277467. The next prime is 225290277529. The reversal of 225290277505 is 505772092522.

It can be written as a sum of positive squares in 16 ways, for example, as 18753659136 + 206536618369 = 136944^2 + 454463^2 .

It is a cyclic number.

It is not a de Polignac number, because 225290277505 - 2¹³ = 225290269313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26385597 + ... + 26394133.

It is an arithmetic number, because the mean of its divisors is an integer number (9071082837).

Almost surely, 2^225290277505 is an apocalyptic number.

It is an amenable number.

225290277505 is a deficient number, since it is larger than the sum of its proper divisors (64984373279).

225290277505 is a wasteful number, since it uses less digits than its factorization.

225290277505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12885.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 225290277505 in words is "two hundred twenty-five billion, two hundred ninety million, two hundred seventy-seven thousand, five hundred five".