25140668 has 12 divisors (see below), whose sum is σ = 50281392. Its totient is φ = 10774560.

The previous prime is 25140641. The next prime is 25140677. The reversal of 25140668 is 86604152.

25140668 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448913 + ... + 448968.

It is an arithmetic number, because the mean of its divisors is an integer number (4190116).

Almost surely, 2^25140668 is an apocalyptic number.

25140668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25140668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25140668 is a wasteful number, since it uses less digits than its factorization.

25140668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897892 (or 897890 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 25140668 is about 5014.0470679881. The cubic root of 25140668 is about 292.9491693905.

The spelling of 25140668 in words is "twenty-five million, one hundred forty thousand, six hundred sixty-eight".