25570112 has 56 divisors (see below), whose sum is σ = 54864000. Its totient is φ = 11787776.

The previous prime is 25570099. The next prime is 25570117. The reversal of 25570112 is 21107552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25570117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42389 + ... + 42987.

Almost surely, 2^25570112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25570112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27432000).

25570112 is an abundant number, since it is smaller than the sum of its proper divisors (29293888).

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

25570112 is a wasteful number, since it uses less digits than its factorization.

25570112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 25570112 is about 5056.6898263587. The cubic root of 25570112 is about 294.6077790457.

Adding to 25570112 its reverse (21107552), we get a palindrome (46677664).

The spelling of 25570112 in words is "twenty-five million, five hundred seventy thousand, one hundred twelve".