26455157 has 2 divisors, whose sum is σ = 26455158. Its totient is φ = 26455156.

The previous prime is 26455147. The next prime is 26455181. The reversal of 26455157 is 75155462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18309841 + 8145316 = 4279^2 + 2854^2 .

It is a cyclic number.

It is not a de Polignac number, because 26455157 - 2¹⁰ = 26454133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26455147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13227578 + 13227579.

It is an arithmetic number, because the mean of its divisors is an integer number (13227579).

Almost surely, 2^26455157 is an apocalyptic number.

It is an amenable number.

26455157 is a deficient number, since it is larger than the sum of its proper divisors (1).

26455157 is an equidigital number, since it uses as much as digits as its factorization.

26455157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 26455157 is about 5143.4576891426. The cubic root of 26455157 is about 297.9683351488.

The spelling of 26455157 in words is "twenty-six million, four hundred fifty-five thousand, one hundred fifty-seven".