25378480 has 40 divisors (see below), whose sum is σ = 61045200. Its totient is φ = 9800448.

The previous prime is 25378477. The next prime is 25378487. The reversal of 25378480 is 8487352.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×25378480² = 1288134494220800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25378487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3150 + ... + 7789.

It is an arithmetic number, because the mean of its divisors is an integer number (1526130).

Almost surely, 2^25378480 is an apocalyptic number.

25378480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25378480 is an abundant number, since it is smaller than the sum of its proper divisors (35666720).

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

25378480 is a wasteful number, since it uses less digits than its factorization.

25378480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10981 (or 10975 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 25378480 is about 5037.7058270606. The cubic root of 25378480 is about 293.8699657880.

The spelling of 25378480 in words is "twenty-five million, three hundred seventy-eight thousand, four hundred eighty".