2565752274247 has 2 divisors, whose sum is σ = 2565752274248. Its totient is φ = 2565752274246.

The previous prime is 2565752274233. The next prime is 2565752274259. The reversal of 2565752274247 is 7424722575652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2565752274247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2565752274191 and 2565752274200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565752274347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282876137123 + 1282876137124.

It is an arithmetic number, because the mean of its divisors is an integer number (1282876137124).

Almost surely, 2^{2565752274247} is an apocalyptic number.

2565752274247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565752274247 is an equidigital number, since it uses as much as digits as its factorization.

2565752274247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856000, while the sum is 58.

The spelling of 2565752274247 in words is "two trillion, five hundred sixty-five billion, seven hundred fifty-two million, two hundred seventy-four thousand, two hundred forty-seven".