2565002437 has 2 divisors, whose sum is σ = 2565002438. Its totient is φ = 2565002436.

The previous prime is 2565002399. The next prime is 2565002471. The reversal of 2565002437 is 7342005652.

It is an a-pointer prime, because the next prime (2565002471) can be obtained adding 2565002437 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2479143681 + 85858756 = 49791^2 + 9266^2 .

It is a cyclic number.

It is not a de Polignac number, because 2565002437 - 2²⁷ = 2430784709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565003437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282501218 + 1282501219.

It is an arithmetic number, because the mean of its divisors is an integer number (1282501219).

Almost surely, 2^2565002437 is an apocalyptic number.

It is an amenable number.

2565002437 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565002437 is an equidigital number, since it uses as much as digits as its factorization.

2565002437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 2565002437 is about 50645.8531076336. The cubic root of 2565002437 is about 1368.8712241362.

The spelling of 2565002437 in words is "two billion, five hundred sixty-five million, two thousand, four hundred thirty-seven".