25067840 has 168 divisors, whose sum is σ = 74322432. Its totient is φ = 7879680.

The previous prime is 25067827. The next prime is 25067863. The reversal of 25067840 is 4876052.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 25067797 and 25067806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 808625 + ... + 808655.

Almost surely, 2^25067840 is an apocalyptic number.

25067840 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 25067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37161216).

25067840 is an abundant number, since it is smaller than the sum of its proper divisors (49254592).

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

25067840 is a wasteful number, since it uses less digits than its factorization.

25067840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 25067840 is about 5006.7794039682. The cubic root of 25067840 is about 292.6660220950. Note that the first 3 decimals are identical.

The spelling of 25067840 in words is "twenty-five million, sixty-seven thousand, eight hundred forty".