25230140 has 24 divisors (see below), whose sum is σ = 57059520. Its totient is φ = 9315648.

The previous prime is 25230131. The next prime is 25230143. The reversal of 25230140 is 4103252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25230143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48260 + ... + 48779.

It is an arithmetic number, because the mean of its divisors is an integer number (2377480).

Almost surely, 2^25230140 is an apocalyptic number.

25230140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25230140 is an abundant number, since it is smaller than the sum of its proper divisors (31829380).

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

25230140 is a wasteful number, since it uses less digits than its factorization.

25230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97061 (or 97059 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 25230140 is about 5022.9612779714. The cubic root of 25230140 is about 293.2962791808.

Adding to 25230140 its reverse (4103252), we get a palindrome (29333392).

The spelling of 25230140 in words is "twenty-five million, two hundred thirty thousand, one hundred forty".