25230120 has 64 divisors (see below), whose sum is σ = 77137920. Its totient is φ = 6599424.

The previous prime is 25230113. The next prime is 25230131. The reversal of 25230120 is 2103252.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 25230120.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4377 + ... + 8343.

It is an arithmetic number, because the mean of its divisors is an integer number (1205280).

Almost surely, 2^25230120 is an apocalyptic number.

25230120 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 25230120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38568960).

25230120 is an abundant number, since it is smaller than the sum of its proper divisors (51907800).

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

25230120 is a wasteful number, since it uses less digits than its factorization.

25230120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034 (or 4030 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 25230120 is about 5022.9592871135. The cubic root of 25230120 is about 293.2962016819.

Adding to 25230120 its reverse (2103252), we get a palindrome (27333372).

It can be divided in two parts, 25230 and 120, that multiplied together give a square (3027600 = 1740²).

The spelling of 25230120 in words is "twenty-five million, two hundred thirty thousand, one hundred twenty".