26197425 has 60 divisors (see below), whose sum is σ = 51448716. Its totient is φ = 13132800.

The previous prime is 26197421. The next prime is 26197441. The reversal of 26197425 is 52479162.

It can be written as a sum of positive squares in 6 ways, for example, as 3272481 + 22924944 = 1809^2 + 4788^2 .

It is not a de Polignac number, because 26197425 - 2² = 26197421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26197425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26197421) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 34045 + ... + 34805.

Almost surely, 2^26197425 is an apocalyptic number.

26197425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26197425 is a deficient number, since it is larger than the sum of its proper divisors (25251291).

26197425 is a wasteful number, since it uses less digits than its factorization.

26197425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 786 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 26197425 is about 5118.3420167081. The cubic root of 26197425 is about 296.9975512501.

The spelling of 26197425 in words is "twenty-six million, one hundred ninety-seven thousand, four hundred twenty-five".