25570788 has 48 divisors (see below), whose sum is σ = 63645120. Its totient is φ = 7962624.

The previous prime is 25570781. The next prime is 25570801. The reversal of 25570788 is 88707552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25570781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32868 + ... + 33636.

It is an arithmetic number, because the mean of its divisors is an integer number (1325940).

Almost surely, 2^25570788 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 25570788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31822560).

25570788 is an abundant number, since it is smaller than the sum of its proper divisors (38074332).

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

25570788 is a wasteful number, since it uses less digits than its factorization.

25570788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 25570788 is about 5056.7566680630. The cubic root of 25570788 is about 294.6103752161.

The spelling of 25570788 in words is "twenty-five million, five hundred seventy thousand, seven hundred eighty-eight".