26245520 has 40 divisors (see below), whose sum is σ = 69739584. Its totient is φ = 8998272.

The previous prime is 26245519. The next prime is 26245529. The reversal of 26245520 is 2554262.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 26245520.

It is not an unprimeable number, because it can be changed into a prime (26245529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22874 + ... + 23993.

Almost surely, 2^26245520 is an apocalyptic number.

26245520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26245520 is an abundant number, since it is smaller than the sum of its proper divisors (43494064).

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

26245520 is a wasteful number, since it uses less digits than its factorization.

26245520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46887 (or 46881 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 26245520 is about 5123.0381610915. The cubic root of 26245520 is about 297.1791895205.

Adding to 26245520 its reverse (2554262), we get a palindrome (28799782).

The spelling of 26245520 in words is "twenty-six million, two hundred forty-five thousand, five hundred twenty".