402025553 has 2 divisors, whose sum is σ = 402025554. Its totient is φ = 402025552.

The previous prime is 402025543. The next prime is 402025573. The reversal of 402025553 is 355520204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264127504 + 137898049 = 16252^2 + 11743^2 .

It is a cyclic number.

It is not a de Polignac number, because 402025553 - 2⁸ = 402025297 is a prime.

It is not a weakly prime, because it can be changed into another prime (402025543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201012776 + 201012777.

It is an arithmetic number, because the mean of its divisors is an integer number (201012777).

Almost surely, 2^402025553 is an apocalyptic number.

It is an amenable number.

402025553 is a deficient number, since it is larger than the sum of its proper divisors (1).

402025553 is an equidigital number, since it uses as much as digits as its factorization.

402025553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 402025553 is about 20050.5748795390. The cubic root of 402025553 is about 738.0479064727.

Adding to 402025553 its reverse (355520204), we get a palindrome (757545757).

The spelling of 402025553 in words is "four hundred two million, twenty-five thousand, five hundred fifty-three".