25493480 has 16 divisors (see below), whose sum is σ = 57360420. Its totient is φ = 10197376.

The previous prime is 25493471. The next prime is 25493483. The reversal of 25493480 is 8439452.

It can be written as a sum of positive squares in 2 ways, for example, as 23990404 + 1503076 = 4898^2 + 1226^2 .

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 25493480.

It is not an unprimeable number, because it can be changed into a prime (25493483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318629 + ... + 318708.

Almost surely, 2^25493480 is an apocalyptic number.

25493480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25493480 is an abundant number, since it is smaller than the sum of its proper divisors (31866940).

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

25493480 is a wasteful number, since it uses less digits than its factorization.

25493480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637348 (or 637344 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 25493480 is about 5049.1068517115. The cubic root of 25493480 is about 294.3131776209.

The spelling of 25493480 in words is "twenty-five million, four hundred ninety-three thousand, four hundred eighty".