25463040 has 144 divisors (see below), whose sum is σ = 85848000. Its totient is φ = 6414336.

The previous prime is 25463033. The next prime is 25463041. The reversal of 25463040 is 4036452.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 25463040.

It is not an unprimeable number, because it can be changed into a prime (25463041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72786 + ... + 73134.

Almost surely, 2^25463040 is an apocalyptic number.

25463040 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 25463040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42924000).

25463040 is an abundant number, since it is smaller than the sum of its proper divisors (60384960).

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

25463040 is a wasteful number, since it uses less digits than its factorization.

25463040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 25463040 is about 5046.0915568388. The cubic root of 25463040 is about 294.1959913021.

Adding to 25463040 its reverse (4036452), we get a palindrome (29499492).

The spelling of 25463040 in words is "twenty-five million, four hundred sixty-three thousand, forty".