25244730 has 192 divisors, whose sum is σ = 83393280. Its totient is φ = 5318784.

The previous prime is 25244719. The next prime is 25244753. The reversal of 25244730 is 3744252.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25244694 and 25244703.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 682272 + ... + 682308.

It is an arithmetic number, because the mean of its divisors is an integer number (434340).

Almost surely, 2^25244730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25244730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41696640).

25244730 is an abundant number, since it is smaller than the sum of its proper divisors (58148550).

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

25244730 is a wasteful number, since it uses less digits than its factorization.

25244730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 25244730 is about 5024.4133985969. The cubic root of 25244730 is about 293.3528037466.

Adding to 25244730 its reverse (3744252), we get a palindrome (28988982).

The spelling of 25244730 in words is "twenty-five million, two hundred forty-four thousand, seven hundred thirty".