25242030 has 80 divisors (see below), whose sum is σ = 74069424. Its totient is φ = 6117120.

The previous prime is 25242011. The next prime is 25242031. The reversal of 25242030 is 3024252.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25241994 and 25242012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25242031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7494 + ... + 10326.

Almost surely, 2^25242030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25242030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37034712).

25242030 is an abundant number, since it is smaller than the sum of its proper divisors (48827394).

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

25242030 is a wasteful number, since it uses less digits than its factorization.

25242030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863 (or 2854 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 25242030 is about 5024.1447033301. The cubic root of 25242030 is about 293.3423450514.

Adding to 25242030 its reverse (3024252), we get a palindrome (28266282).

It can be divided in two parts, 2524 and 2030, that added together give a palindrome (4554).

The spelling of 25242030 in words is "twenty-five million, two hundred forty-two thousand, thirty".