25678380 has 96 divisors (see below), whose sum is σ = 88510464. Its totient is φ = 5416704.

The previous prime is 25678379. The next prime is 25678493. The reversal of 25678380 is 8387652.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3109 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (921984).

Almost surely, 2^25678380 is an apocalyptic number.

25678380 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 25678380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44255232).

25678380 is an abundant number, since it is smaller than the sum of its proper divisors (62832084).

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

25678380 is a wasteful number, since it uses less digits than its factorization.

25678380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735 (or 4733 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 25678380 is about 5067.3839404569. The cubic root of 25678380 is about 295.0229992602.

The spelling of 25678380 in words is "twenty-five million, six hundred seventy-eight thousand, three hundred eighty".