25534120 has 32 divisors (see below), whose sum is σ = 58151520. Its totient is φ = 10089280.

The previous prime is 25534109. The next prime is 25534121. The reversal of 25534120 is 2143552.

It is a junction number, because it is equal to n+sod(n) for n = 25534091 and 25534100.

It is not an unprimeable number, because it can be changed into a prime (25534121) 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, 526 + ... + 7165.

It is an arithmetic number, because the mean of its divisors is an integer number (1817235).

Almost surely, 2^25534120 is an apocalyptic number.

25534120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25534120 is an abundant number, since it is smaller than the sum of its proper divisors (32617400).

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

25534120 is a wasteful number, since it uses less digits than its factorization.

25534120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7785 (or 7781 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25534120 is about 5053.1297232507. The cubic root of 25534120 is about 294.4694860498.

Adding to 25534120 its reverse (2143552), we get a palindrome (27677672).

The spelling of 25534120 in words is "twenty-five million, five hundred thirty-four thousand, one hundred twenty".