2565452803 has 2 divisors, whose sum is σ = 2565452804. Its totient is φ = 2565452802.

The previous prime is 2565452801. The next prime is 2565452807. The reversal of 2565452803 is 3082545652.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2565452803 - 2¹ = 2565452801 is a prime.

Together with 2565452801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2565452801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282726401 + 1282726402.

It is an arithmetic number, because the mean of its divisors is an integer number (1282726402).

Almost surely, 2^2565452803 is an apocalyptic number.

2565452803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565452803 is an equidigital number, since it uses as much as digits as its factorization.

2565452803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 40.

The square root of 2565452803 is about 50650.2991402815. The cubic root of 2565452803 is about 1368.9513354284.

The spelling of 2565452803 in words is "two billion, five hundred sixty-five million, four hundred fifty-two thousand, eight hundred three".