25305036 has 48 divisors (see below), whose sum is σ = 63692160. Its totient is φ = 7793280.

The previous prime is 25305013. The next prime is 25305053. The reversal of 25305036 is 63050352.

It is a super-2 number, since 2×25305036² = 1280689693922592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25304997 and 25305015.

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, 7995 + ... + 10701.

It is an arithmetic number, because the mean of its divisors is an integer number (1326920).

Almost surely, 2^25305036 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 25305036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31846080).

25305036 is an abundant number, since it is smaller than the sum of its proper divisors (38387124).

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

25305036 is a wasteful number, since it uses less digits than its factorization.

25305036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774 (or 2772 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 25305036 is about 5030.4111163999. The cubic root of 25305036 is about 293.5862104263.

Adding to 25305036 its reverse (63050352), we get a palindrome (88355388).

The spelling of 25305036 in words is "twenty-five million, three hundred five thousand, thirty-six".