21514411252297 has 2 divisors, whose sum is σ = 21514411252298. Its totient is φ = 21514411252296.

The previous prime is 21514411252249. The next prime is 21514411252351. The reversal of 21514411252297 is 79225211441512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18561526439481 + 2952884812816 = 4308309^2 + 1718396^2 .

It is a cyclic number.

It is not a de Polignac number, because 21514411252297 - 2²³ = 21514402863689 is a prime.

It is not a weakly prime, because it can be changed into another prime (21514411252247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10757205626148 + 10757205626149.

It is an arithmetic number, because the mean of its divisors is an integer number (10757205626149).

Almost surely, 2^{21514411252297} is an apocalyptic number.

It is an amenable number.

21514411252297 is a deficient number, since it is larger than the sum of its proper divisors (1).

21514411252297 is an equidigital number, since it uses as much as digits as its factorization.

21514411252297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 46.

The spelling of 21514411252297 in words is "twenty-one trillion, five hundred fourteen billion, four hundred eleven million, two hundred fifty-two thousand, two hundred ninety-seven".