25065240 has 32 divisors (see below), whose sum is σ = 75196080. Its totient is φ = 6684032.

The previous prime is 25065233. The next prime is 25065263. The reversal of 25065240 is 4256052.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 25065240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104319 + ... + 104558.

Almost surely, 2^25065240 is an apocalyptic number.

25065240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25065240 is an abundant number, since it is smaller than the sum of its proper divisors (50130840).

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

25065240 is a wasteful number, since it uses less digits than its factorization.

25065240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208891 (or 208887 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25065240 is about 5006.5197492869. The cubic root of 25065240 is about 292.6559034467.

The spelling of 25065240 in words is "twenty-five million, sixty-five thousand, two hundred forty".