225225555131 has 2 divisors, whose sum is σ = 225225555132. Its totient is φ = 225225555130.

The previous prime is 225225555127. The next prime is 225225555193. The reversal of 225225555131 is 131555522522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225225555131 - 2² = 225225555127 is a prime.

It is a super-2 number, since 2×225225555131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225225555931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112612777565 + 112612777566.

It is an arithmetic number, because the mean of its divisors is an integer number (112612777566).

Almost surely, 2^225225555131 is an apocalyptic number.

225225555131 is a deficient number, since it is larger than the sum of its proper divisors (1).

225225555131 is an equidigital number, since it uses as much as digits as its factorization.

225225555131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150000, while the sum is 38.

The spelling of 225225555131 in words is "two hundred twenty-five billion, two hundred twenty-five million, five hundred fifty-five thousand, one hundred thirty-one".