25312588 has 48 divisors (see below), whose sum is σ = 53089344. Its totient is φ = 10333440.

The previous prime is 25312549. The next prime is 25312589. The reversal of 25312588 is 88521352.

It is a super-2 number, since 2×25312588² = 1281454222515488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25312589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54678 + ... + 55138.

It is an arithmetic number, because the mean of its divisors is an integer number (1106028).

Almost surely, 2^25312588 is an apocalyptic number.

25312588 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25312588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26544672).

25312588 is an abundant number, since it is smaller than the sum of its proper divisors (27776756).

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

25312588 is a wasteful number, since it uses less digits than its factorization.

25312588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 560 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 25312588 is about 5031.1616948772. The cubic root of 25312588 is about 293.6154133424.

The spelling of 25312588 in words is "twenty-five million, three hundred twelve thousand, five hundred eighty-eight".