25006040 has 32 divisors (see below), whose sum is σ = 56501280. Its totient is φ = 9960192.

The previous prime is 25006027. The next prime is 25006049. The reversal of 25006040 is 4060052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25006049) 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, 9332 + ... + 11708.

It is an arithmetic number, because the mean of its divisors is an integer number (1765665).

Almost surely, 2^25006040 is an apocalyptic number.

25006040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25006040 is an abundant number, since it is smaller than the sum of its proper divisors (31495240).

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

25006040 is a wasteful number, since it uses less digits than its factorization.

25006040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2651 (or 2647 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 25006040 is about 5000.6039635228. The cubic root of 25006040 is about 292.4253200147.

Adding to 25006040 its reverse (4060052), we get a palindrome (29066092).

The spelling of 25006040 in words is "twenty-five million, six thousand, forty".