25305300 has 108 divisors (see below), whose sum is σ = 81966976. Its totient is φ = 6523200.

The previous prime is 25305257. The next prime is 25305307. The reversal of 25305300 is 350352.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25305307) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27447 + ... + 28353.

Almost surely, 2^25305300 is an apocalyptic number.

25305300 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 25305300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40983488).

25305300 is an abundant number, since it is smaller than the sum of its proper divisors (56661676).

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

25305300 is a wasteful number, since it uses less digits than its factorization.

25305300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 25305300 is about 5030.4373567315. The cubic root of 25305300 is about 293.5872313889.

Adding to 25305300 its reverse (350352), we get a palindrome (25655652).

The spelling of 25305300 in words is "twenty-five million, three hundred five thousand, three hundred".