25140838 has 16 divisors (see below), whose sum is σ = 39816000. Its totient is φ = 11872872.

The previous prime is 25140833. The next prime is 25140839. The reversal of 25140838 is 83804152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25140833) 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 7 ways as a sum of consecutive naturals, for example, 15133 + ... + 16711.

It is an arithmetic number, because the mean of its divisors is an integer number (2488500).

Almost surely, 2^25140838 is an apocalyptic number.

25140838 is a deficient number, since it is larger than the sum of its proper divisors (14675162).

25140838 is a wasteful number, since it uses less digits than its factorization.

25140838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 25140838 is about 5014.0640203332. The cubic root of 25140838 is about 292.9498296918.

The spelling of 25140838 in words is "twenty-five million, one hundred forty thousand, eight hundred thirty-eight".