26355367553 has 2 divisors, whose sum is σ = 26355367554. Its totient is φ = 26355367552.

The previous prime is 26355367537. The next prime is 26355367651. The reversal of 26355367553 is 35576355362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15407512129 + 10947855424 = 124127^2 + 104632^2 .

It is a cyclic number.

It is not a de Polignac number, because 26355367553 - 2⁴ = 26355367537 is a prime.

It is not a weakly prime, because it can be changed into another prime (26355367523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13177683776 + 13177683777.

It is an arithmetic number, because the mean of its divisors is an integer number (13177683777).

Almost surely, 2^26355367553 is an apocalyptic number.

It is an amenable number.

26355367553 is a deficient number, since it is larger than the sum of its proper divisors (1).

26355367553 is an equidigital number, since it uses as much as digits as its factorization.

26355367553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505000, while the sum is 50.

The spelling of 26355367553 in words is "twenty-six billion, three hundred fifty-five million, three hundred sixty-seven thousand, five hundred fifty-three".