5261225104321 has 2 divisors, whose sum is σ = 5261225104322. Its totient is φ = 5261225104320.

The previous prime is 5261225104211. The next prime is 5261225104391. The reversal of 5261225104321 is 1234015221625.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4906938255921 + 354286848400 = 2215161^2 + 595220^2 .

It is a cyclic number.

It is not a de Polignac number, because 5261225104321 - 2³⁹ = 4711469290433 is a prime.

It is not a weakly prime, because it can be changed into another prime (5261225104391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630612552160 + 2630612552161.

It is an arithmetic number, because the mean of its divisors is an integer number (2630612552161).

Almost surely, 2^{5261225104321} is an apocalyptic number.

It is an amenable number.

5261225104321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5261225104321 is an equidigital number, since it uses as much as digits as its factorization.

5261225104321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 5261225104321 in words is "five trillion, two hundred sixty-one billion, two hundred twenty-five million, one hundred four thousand, three hundred twenty-one".