25334540 has 48 divisors (see below), whose sum is σ = 66334464. Its totient is φ = 7896000.

The previous prime is 25334521. The next prime is 25334549. The reversal of 25334540 is 4543352.

It is not an unprimeable number, because it can be changed into a prime (25334549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6686 + ... + 9765.

It is an arithmetic number, because the mean of its divisors is an integer number (1381968).

Almost surely, 2^25334540 is an apocalyptic number.

25334540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25334540 is an abundant number, since it is smaller than the sum of its proper divisors (40999924).

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

25334540 is a wasteful number, since it uses less digits than its factorization.

25334540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16478 (or 16476 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 25334540 is about 5033.3428255981. The cubic root of 25334540 is about 293.7002668181.

Adding to 25334540 its reverse (4543352), we get a palindrome (29877892).

The spelling of 25334540 in words is "twenty-five million, three hundred thirty-four thousand, five hundred forty".