255320862000401 has 2 divisors, whose sum is σ = 255320862000402. Its totient is φ = 255320862000400.

The previous prime is 255320862000383. The next prime is 255320862000403. The reversal of 255320862000401 is 104000268023552.

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., 140716557484801 + 114604304515600 = 11862401^2 + 10705340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255320862000401 is a prime.

It is a super-2 number, since 2×255320862000401² (a number of 30 digits) contains 22 as substring.

Together with 255320862000403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255320862000403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127660431000200 + 127660431000201.

It is an arithmetic number, because the mean of its divisors is an integer number (127660431000201).

Almost surely, 2^{255320862000401} is an apocalyptic number.

It is an amenable number.

255320862000401 is a deficient number, since it is larger than the sum of its proper divisors (1).

255320862000401 is an equidigital number, since it uses as much as digits as its factorization.

255320862000401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 255320862000401 in words is "two hundred fifty-five trillion, three hundred twenty billion, eight hundred sixty-two million, four hundred one", and thus it is an aban number.