26780053 has 2 divisors, whose sum is σ = 26780054. Its totient is φ = 26780052.

The previous prime is 26780029. The next prime is 26780069. The reversal of 26780053 is 35008762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26440164 + 339889 = 5142^2 + 583^2 .

It is a cyclic number.

It is not a de Polignac number, because 26780053 - 2¹³ = 26771861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26779997 and 26780024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26780153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13390026 + 13390027.

It is an arithmetic number, because the mean of its divisors is an integer number (13390027).

Almost surely, 2^26780053 is an apocalyptic number.

It is an amenable number.

26780053 is a deficient number, since it is larger than the sum of its proper divisors (1).

26780053 is an equidigital number, since it uses as much as digits as its factorization.

26780053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 26780053 is about 5174.9447340044. The cubic root of 26780053 is about 299.1831594049.

The spelling of 26780053 in words is "twenty-six million, seven hundred eighty thousand, fifty-three".