25242270 has 32 divisors (see below), whose sum is σ = 63217152. Its totient is φ = 6438432.

The previous prime is 25242199. The next prime is 25242281. The reversal of 25242270 is 7224252.

It is a self number, because there is not a number n which added to its sum of digits gives 25242270.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17602 + ... + 18981.

It is an arithmetic number, because the mean of its divisors is an integer number (1975536).

Almost surely, 2^25242270 is an apocalyptic number.

25242270 is an abundant number, since it is smaller than the sum of its proper divisors (37974882).

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

25242270 is a wasteful number, since it uses less digits than its factorization.

25242270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36616.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 25242270 is about 5024.1685879357. The cubic root of 25242270 is about 293.3432747434.

The spelling of 25242270 in words is "twenty-five million, two hundred forty-two thousand, two hundred seventy".