26525120497 has 2 divisors, whose sum is σ = 26525120498. Its totient is φ = 26525120496.

The previous prime is 26525120441. The next prime is 26525120509. The reversal of 26525120497 is 79402152562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21120518241 + 5404602256 = 145329^2 + 73516^2 .

It is a cyclic number.

It is not a de Polignac number, because 26525120497 - 2²³ = 26516731889 is a prime.

It is not a weakly prime, because it can be changed into another prime (26525120597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13262560248 + 13262560249.

It is an arithmetic number, because the mean of its divisors is an integer number (13262560249).

Almost surely, 2^26525120497 is an apocalyptic number.

It is an amenable number.

26525120497 is a deficient number, since it is larger than the sum of its proper divisors (1).

26525120497 is an equidigital number, since it uses as much as digits as its factorization.

26525120497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 26525120497 in words is "twenty-six billion, five hundred twenty-five million, one hundred twenty thousand, four hundred ninety-seven".