25978368 has 80 divisors (see below), whose sum is σ = 74588976. Its totient is φ = 7987200.

The previous prime is 25978367. The next prime is 25978369. The reversal of 25978368 is 86387952.

It is an interprime number because it is at equal distance from previous prime (25978367) and next prime (25978369).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25978367) 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, 19318 + ... + 20618.

Almost surely, 2^25978368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25978368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37294488).

25978368 is an abundant number, since it is smaller than the sum of its proper divisors (48610608).

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

25978368 is a wasteful number, since it uses less digits than its factorization.

25978368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1319 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 25978368 is about 5096.8978800835. The cubic root of 25978368 is about 296.1674241536.

The spelling of 25978368 in words is "twenty-five million, nine hundred seventy-eight thousand, three hundred sixty-eight".