25929480 has 64 divisors (see below), whose sum is σ = 80481600. Its totient is φ = 6675200.

The previous prime is 25929467. The next prime is 25929481. The reversal of 25929480 is 8492952.

It is not an unprimeable number, because it can be changed into a prime (25929481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246 + ... + 7205.

It is an arithmetic number, because the mean of its divisors is an integer number (1257525).

Almost surely, 2^25929480 is an apocalyptic number.

25929480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25929480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40240800).

25929480 is an abundant number, since it is smaller than the sum of its proper divisors (54552120).

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

25929480 is a wasteful number, since it uses less digits than its factorization.

25929480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7494 (or 7490 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 25929480 is about 5092.0997633589. The cubic root of 25929480 is about 295.9815242912.

The spelling of 25929480 in words is "twenty-five million, nine hundred twenty-nine thousand, four hundred eighty".