25602340 has 48 divisors (see below), whose sum is σ = 57344112. Its totient is φ = 9568256.

The previous prime is 25602337. The next prime is 25602361. The reversal of 25602340 is 4320652.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10188864 + 15413476 = 3192^2 + 3926^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87234 + ... + 87526.

It is an arithmetic number, because the mean of its divisors is an integer number (1194669).

Almost surely, 2^25602340 is an apocalyptic number.

25602340 is a gapful number since it is divisible by the number (20) 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 25602340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28672056).

25602340 is an abundant number, since it is smaller than the sum of its proper divisors (31741772).

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

25602340 is a wasteful number, since it uses less digits than its factorization.

25602340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 25602340 is about 5059.8754925393. The cubic root of 25602340 is about 294.7314994444.

Adding to 25602340 its reverse (4320652), we get a palindrome (29922992).

It can be divided in two parts, 2560 and 2340, that added together give a square (4900 = 70²).

The spelling of 25602340 in words is "twenty-five million, six hundred two thousand, three hundred forty".