26613157 has 2 divisors, whose sum is σ = 26613158. Its totient is φ = 26613156.

The previous prime is 26613151. The next prime is 26613163. The reversal of 26613157 is 75131662.

26613157 is nontrivially palindromic in base 7.

It is a balanced prime because it is at equal distance from previous prime (26613151) and next prime (26613163).

It can be written as a sum of positive squares in only one way, i.e., 20848356 + 5764801 = 4566^2 + 2401^2 .

It is a cyclic number.

It is not a de Polignac number, because 26613157 - 2³ = 26613149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26613151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13306578 + 13306579.

It is an arithmetic number, because the mean of its divisors is an integer number (13306579).

Almost surely, 2^26613157 is an apocalyptic number.

It is an amenable number.

26613157 is a deficient number, since it is larger than the sum of its proper divisors (1).

26613157 is an equidigital number, since it uses as much as digits as its factorization.

26613157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 26613157 is about 5158.7941420452. The cubic root of 26613157 is about 298.5603505643.

The spelling of 26613157 in words is "twenty-six million, six hundred thirteen thousand, one hundred fifty-seven".