2225366054581 has 2 divisors, whose sum is σ = 2225366054582. Its totient is φ = 2225366054580.

The previous prime is 2225366054543. The next prime is 2225366054617. The reversal of 2225366054581 is 1854506635222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2176377315025 + 48988739556 = 1475255^2 + 221334^2 .

It is a cyclic number.

It is not a de Polignac number, because 2225366054581 - 2⁹ = 2225366054069 is a prime.

It is a super-2 number, since 2×2225366054581² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2225366054531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112683027290 + 1112683027291.

It is an arithmetic number, because the mean of its divisors is an integer number (1112683027291).

Almost surely, 2^{2225366054581} is an apocalyptic number.

It is an amenable number.

2225366054581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2225366054581 is an equidigital number, since it uses as much as digits as its factorization.

2225366054581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 2225366054581 in words is "two trillion, two hundred twenty-five billion, three hundred sixty-six million, fifty-four thousand, five hundred eighty-one".