25072830 has 48 divisors (see below), whose sum is σ = 66272544. Its totient is φ = 6575040.

The previous prime is 25072819. The next prime is 25072843. The reversal of 25072830 is 3827052.

It is a junction number, because it is equal to n+sod(n) for n = 25072794 and 25072803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3207 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (1380678).

Almost surely, 2^25072830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25072830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33136272).

25072830 is an abundant number, since it is smaller than the sum of its proper divisors (41199714).

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

25072830 is a wasteful number, since it uses less digits than its factorization.

25072830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4641 (or 4638 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25072830 is about 5007.2777035032. The cubic root of 25072830 is about 292.6854401563.

Adding to 25072830 its reverse (3827052), we get a palindrome (28899882).

The spelling of 25072830 in words is "twenty-five million, seventy-two thousand, eight hundred thirty".