225320523261 has 8 divisors (see below), whose sum is σ = 300701231424. Its totient is φ = 150076748640.

The previous prime is 225320523229. The next prime is 225320523283. The reversal of 225320523261 is 162325023522.

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

It is not a de Polignac number, because 225320523261 - 2⁵ = 225320523229 is a prime.

It is a super-2 number, since 2×225320523261² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225320533261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34229545 + ... + 34236126.

It is an arithmetic number, because the mean of its divisors is an integer number (37587653928).

Almost surely, 2^225320523261 is an apocalyptic number.

It is an amenable number.

225320523261 is a deficient number, since it is larger than the sum of its proper divisors (75380708163).

225320523261 is a wasteful number, since it uses less digits than its factorization.

225320523261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68466771.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 225320523261 its reverse (162325023522), we get a palindrome (387645546783).

The spelling of 225320523261 in words is "two hundred twenty-five billion, three hundred twenty million, five hundred twenty-three thousand, two hundred sixty-one".