25540104 has 32 divisors (see below), whose sum is σ = 67212000. Its totient is φ = 8065152.

The previous prime is 25540079. The next prime is 25540111. The reversal of 25540104 is 40104552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27549 + ... + 28460.

It is an arithmetic number, because the mean of its divisors is an integer number (2100375).

Almost surely, 2^25540104 is an apocalyptic number.

25540104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25540104 is an abundant number, since it is smaller than the sum of its proper divisors (41671896).

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

25540104 is a wasteful number, since it uses less digits than its factorization.

25540104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56037 (or 56033 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 25540104 is about 5053.7217968543. The cubic root of 25540104 is about 294.4924875313.

Adding to 25540104 its reverse (40104552), we get a palindrome (65644656).

The spelling of 25540104 in words is "twenty-five million, five hundred forty thousand, one hundred four".