2536221497 has 2 divisors, whose sum is σ = 2536221498. Its totient is φ = 2536221496.

The previous prime is 2536221481. The next prime is 2536221511. The reversal of 2536221497 is 7941226352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1520142121 + 1016079376 = 38989^2 + 31876^2 .

It is a cyclic number.

It is not a de Polignac number, because 2536221497 - 2⁴ = 2536221481 is a prime.

It is not a weakly prime, because it can be changed into another prime (2536221437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1268110748 + 1268110749.

It is an arithmetic number, because the mean of its divisors is an integer number (1268110749).

Almost surely, 2^2536221497 is an apocalyptic number.

It is an amenable number.

2536221497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2536221497 is an equidigital number, since it uses as much as digits as its factorization.

2536221497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 2536221497 is about 50360.9123924498. The cubic root of 2536221497 is about 1363.7320892406.

The spelling of 2536221497 in words is "two billion, five hundred thirty-six million, two hundred twenty-one thousand, four hundred ninety-seven".