2566424551 has 2 divisors, whose sum is σ = 2566424552. Its totient is φ = 2566424550.

The previous prime is 2566424543. The next prime is 2566424569. The reversal of 2566424551 is 1554246652.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2566424551 - 2³ = 2566424543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2566424501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283212275 + 1283212276.

It is an arithmetic number, because the mean of its divisors is an integer number (1283212276).

Almost surely, 2^2566424551 is an apocalyptic number.

2566424551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566424551 is an equidigital number, since it uses as much as digits as its factorization.

2566424551 is an evil number, because the sum of its binary digits is even.

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

The square root of 2566424551 is about 50659.8909493497. The cubic root of 2566424551 is about 1369.1241584345.

The spelling of 2566424551 in words is "two billion, five hundred sixty-six million, four hundred twenty-four thousand, five hundred fifty-one".