25755880 has 32 divisors (see below), whose sum is σ = 59049000. Its totient is φ = 10107136.

The previous prime is 25755869. The next prime is 25755881. The reversal of 25755880 is 8855752.

It can be written as a sum of positive squares in 4 ways, for example, as 25745476 + 10404 = 5074^2 + 102^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (25755881) 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, 3955 + ... + 8194.

Almost surely, 2^25755880 is an apocalyptic number.

25755880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25755880 is an abundant number, since it is smaller than the sum of its proper divisors (33293120).

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

25755880 is a wasteful number, since it uses less digits than its factorization.

25755880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12213 (or 12209 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 25755880 is about 5075.0251230905. The cubic root of 25755880 is about 295.3195044483.

The spelling of 25755880 in words is "twenty-five million, seven hundred fifty-five thousand, eight hundred eighty".