25050040 has 16 divisors (see below), whose sum is σ = 56362680. Its totient is φ = 10020000.

The previous prime is 25050019. The next prime is 25050041. The reversal of 25050040 is 4005052.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25049996 and 25050023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25050041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313086 + ... + 313165.

Almost surely, 2^25050040 is an apocalyptic number.

25050040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25050040 is an abundant number, since it is smaller than the sum of its proper divisors (31312640).

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

25050040 is a wasteful number, since it uses less digits than its factorization.

25050040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626262 (or 626258 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 25050040 is about 5005.0014985013. The cubic root of 25050040 is about 292.5967342650.

Adding to 25050040 its reverse (4005052), we get a palindrome (29055092).

The spelling of 25050040 in words is "twenty-five million, fifty thousand, forty".