23225403420581 has 2 divisors, whose sum is σ = 23225403420582. Its totient is φ = 23225403420580.

The previous prime is 23225403420511. The next prime is 23225403420599. The reversal of 23225403420581 is 18502430452232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23116229348356 + 109174072225 = 4807934^2 + 330415^2 .

It is a cyclic number.

It is not a de Polignac number, because 23225403420581 - 2¹⁴ = 23225403404197 is a prime.

It is a super-2 number, since 2×23225403420581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23225403420511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11612701710290 + 11612701710291.

It is an arithmetic number, because the mean of its divisors is an integer number (11612701710291).

Almost surely, 2^{23225403420581} is an apocalyptic number.

It is an amenable number.

23225403420581 is a deficient number, since it is larger than the sum of its proper divisors (1).

23225403420581 is an equidigital number, since it uses as much as digits as its factorization.

23225403420581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 23225403420581 in words is "twenty-three trillion, two hundred twenty-five billion, four hundred three million, four hundred twenty thousand, five hundred eighty-one".