25877568 has 56 divisors (see below), whose sum is σ = 69787008. Its totient is φ = 8459776.

The previous prime is 25877567. The next prime is 25877573. The reversal of 25877568 is 86577852.

It is a Cunningham number, because it is equal to 5087²-1.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (25877561) 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, 8905 + ... + 11447.

Almost surely, 2^25877568 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 25877568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34893504).

25877568 is an abundant number, since it is smaller than the sum of its proper divisors (43909440).

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

25877568 is a wasteful number, since it uses less digits than its factorization.

25877568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611 (or 2601 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 25877568 is about 5086.9999017102. Note that the first 4 decimals coincide. The cubic root of 25877568 is about 295.7838694968.

The spelling of 25877568 in words is "twenty-five million, eight hundred seventy-seven thousand, five hundred sixty-eight".