25950140 has 12 divisors (see below), whose sum is σ = 54495336. Its totient is φ = 10380048.

The previous prime is 25950139. The next prime is 25950149. The reversal of 25950140 is 4105952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25950149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648734 + ... + 648773.

It is an arithmetic number, because the mean of its divisors is an integer number (4541278).

Almost surely, 2^25950140 is an apocalyptic number.

25950140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25950140 is an abundant number, since it is smaller than the sum of its proper divisors (28545196).

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

25950140 is a wasteful number, since it uses less digits than its factorization.

25950140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297516 (or 1297514 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 25950140 is about 5094.1279921101. The cubic root of 25950140 is about 296.0601137952.

The spelling of 25950140 in words is "twenty-five million, nine hundred fifty thousand, one hundred forty".