26361520 has 20 divisors (see below), whose sum is σ = 61290720. Its totient is φ = 10544576.

The previous prime is 26361497. The next prime is 26361521. The reversal of 26361520 is 2516362.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (26361521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164680 + ... + 164839.

It is an arithmetic number, because the mean of its divisors is an integer number (3064536).

Almost surely, 2^26361520 is an apocalyptic number.

26361520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26361520 is an abundant number, since it is smaller than the sum of its proper divisors (34929200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26361520 is a wasteful number, since it uses less digits than its factorization.

26361520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329532 (or 329526 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 26361520 is about 5134.3470860471. The cubic root of 26361520 is about 297.6163704526.

Adding to 26361520 its reverse (2516362), we get a palindrome (28877882).

The spelling of 26361520 in words is "twenty-six million, three hundred sixty-one thousand, five hundred twenty".