25570230 has 32 divisors (see below), whose sum is σ = 70136064. Its totient is φ = 5844576.

The previous prime is 25570169. The next prime is 25570231. The reversal of 25570230 is 3207552.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25570230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25570231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60672 + ... + 61091.

It is an arithmetic number, because the mean of its divisors is an integer number (2191752).

Almost surely, 2^25570230 is an apocalyptic number.

25570230 is an abundant number, since it is smaller than the sum of its proper divisors (44565834).

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

25570230 is a wasteful number, since it uses less digits than its factorization.

25570230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121780.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 25570230 is about 5056.7014940572. The cubic root of 25570230 is about 294.6082322266.

Adding to 25570230 its reverse (3207552), we get a palindrome (28777782).

The spelling of 25570230 in words is "twenty-five million, five hundred seventy thousand, two hundred thirty".