25195040 has 48 divisors (see below), whose sum is σ = 64107288. Its totient is φ = 9302016.

The previous prime is 25194977. The next prime is 25195057. The reversal of 25195040 is 4059152.

It can be written as a sum of positive squares in 4 ways, for example, as 13278736 + 11916304 = 3644^2 + 3452^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3977 + ... + 8136.

Almost surely, 2^25195040 is an apocalyptic number.

25195040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25195040 is an abundant number, since it is smaller than the sum of its proper divisors (38912248).

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

25195040 is a wasteful number, since it uses less digits than its factorization.

25195040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12141 (or 12133 counting only the distinct ones).

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

The square root of 25195040 is about 5019.4661070676. The cubic root of 25195040 is about 293.1602054602.

The spelling of 25195040 in words is "twenty-five million, one hundred ninety-five thousand, forty".