402256475801 has 2 divisors, whose sum is σ = 402256475802. Its totient is φ = 402256475800.

The previous prime is 402256475779. The next prime is 402256475827. The reversal of 402256475801 is 108574652204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297953314201 + 104303161600 = 545851^2 + 322960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402256475801 is a prime.

It is not a weakly prime, because it can be changed into another prime (402256475891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201128237900 + 201128237901.

It is an arithmetic number, because the mean of its divisors is an integer number (201128237901).

Almost surely, 2^402256475801 is an apocalyptic number.

It is an amenable number.

402256475801 is a deficient number, since it is larger than the sum of its proper divisors (1).

402256475801 is an equidigital number, since it uses as much as digits as its factorization.

402256475801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 402256475801 in words is "four hundred two billion, two hundred fifty-six million, four hundred seventy-five thousand, eight hundred one".