2566202402 has 8 divisors (see below), whose sum is σ = 3982038300. Its totient is φ = 1238856304.

The previous prime is 2566202393. The next prime is 2566202407. The reversal of 2566202402 is 2042026652.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2552371441 + 13830961 = 50521^2 + 3719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (2566202407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22122377 + ... + 22122492.

Almost surely, 2^2566202402 is an apocalyptic number.

2566202402 is a deficient number, since it is larger than the sum of its proper divisors (1415835898).

2566202402 is a wasteful number, since it uses less digits than its factorization.

2566202402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44244900.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2566202402 is about 50657.6983488196. The cubic root of 2566202402 is about 1369.0846536250.

The spelling of 2566202402 in words is "two billion, five hundred sixty-six million, two hundred two thousand, four hundred two".