26117245 has 36 divisors (see below), whose sum is σ = 40118652. Its totient is φ = 16262400.

The previous prime is 26117243. The next prime is 26117249. The reversal of 26117245 is 54271162.

It can be written as a sum of positive squares in 2 ways, for example, as 6853924 + 19263321 = 2618^2 + 4389^2 .

It is not a de Polignac number, because 26117245 - 2¹ = 26117243 is a prime.

It is a super-2 number, since 2×26117245² = 1364220972780050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26117243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29205 + ... + 30085.

It is an arithmetic number, because the mean of its divisors is an integer number (1114407).

Almost surely, 2^26117245 is an apocalyptic number.

It is an amenable number.

26117245 is a deficient number, since it is larger than the sum of its proper divisors (14001407).

26117245 is a wasteful number, since it uses less digits than its factorization.

26117245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 904 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 26117245 is about 5110.5033998619. The cubic root of 26117245 is about 296.6942440944.

It can be divided in two parts, 26117 and 245, that added together give a palindrome (26362).

The spelling of 26117245 in words is "twenty-six million, one hundred seventeen thousand, two hundred forty-five".