25326520 has 32 divisors (see below), whose sum is σ = 58378320. Its totient is φ = 9882880.

The previous prime is 25326503. The next prime is 25326523. The reversal of 25326520 is 2562352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25326523) 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, 6082 + ... + 9361.

Almost surely, 2^25326520 is an apocalyptic number.

25326520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25326520 is an abundant number, since it is smaller than the sum of its proper divisors (33051800).

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

25326520 is a wasteful number, since it uses less digits than its factorization.

25326520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15495 (or 15491 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 25326520 is about 5032.5460752983. The cubic root of 25326520 is about 293.6692719163.

Adding to 25326520 its reverse (2562352), we get a palindrome (27888872).

The spelling of 25326520 in words is "twenty-five million, three hundred twenty-six thousand, five hundred twenty".