25480518 has 64 divisors (see below), whose sum is σ = 62373888. Its totient is φ = 6773760.

The previous prime is 25480489. The next prime is 25480519. The reversal of 25480518 is 81508452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25480519) 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 31 ways as a sum of consecutive naturals, for example, 90538 + ... + 90818.

It is an arithmetic number, because the mean of its divisors is an integer number (974592).

Almost surely, 2^25480518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25480518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31186944).

25480518 is an abundant number, since it is smaller than the sum of its proper divisors (36893370).

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

25480518 is a wasteful number, since it uses less digits than its factorization.

25480518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 25480518 is about 5047.8230951570. The cubic root of 25480518 is about 294.2632886017.

The spelling of 25480518 in words is "twenty-five million, four hundred eighty thousand, five hundred eighteen".