25350040 has 16 divisors (see below), whose sum is σ = 57037680. Its totient is φ = 10140000.

The previous prime is 25350037. The next prime is 25350041. The reversal of 25350040 is 4005352.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25350041) 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, 316836 + ... + 316915.

It is an arithmetic number, because the mean of its divisors is an integer number (3564855).

Almost surely, 2^25350040 is an apocalyptic number.

25350040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25350040 is an abundant number, since it is smaller than the sum of its proper divisors (31687640).

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

25350040 is a wasteful number, since it uses less digits than its factorization.

25350040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633762 (or 633758 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 25350040 is about 5034.8823223587. The cubic root of 25350040 is about 293.7601511506.

Adding to 25350040 its reverse (4005352), we get a palindrome (29355392).

The spelling of 25350040 in words is "twenty-five million, three hundred fifty thousand, forty".