26555057 has 2 divisors, whose sum is σ = 26555058. Its totient is φ = 26555056.

The previous prime is 26554973. The next prime is 26555059. The reversal of 26555057 is 75055562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19351201 + 7203856 = 4399^2 + 2684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26555057 is a prime.

Together with 26555059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26555059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13277528 + 13277529.

It is an arithmetic number, because the mean of its divisors is an integer number (13277529).

Almost surely, 2^26555057 is an apocalyptic number.

It is an amenable number.

26555057 is a deficient number, since it is larger than the sum of its proper divisors (1).

26555057 is an equidigital number, since it uses as much as digits as its factorization.

26555057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52500, while the sum is 35.

The square root of 26555057 is about 5153.1599043694. The cubic root of 26555057 is about 298.3429268439.

The spelling of 26555057 in words is "twenty-six million, five hundred fifty-five thousand, fifty-seven".