25103430 has 48 divisors (see below), whose sum is σ = 71205264. Its totient is φ = 6085440.

The previous prime is 25103417. The next prime is 25103431. The reversal of 25103430 is 3430152.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25103431) 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 23 ways as a sum of consecutive naturals, for example, 11689 + ... + 13668.

It is an arithmetic number, because the mean of its divisors is an integer number (1483443).

Almost surely, 2^25103430 is an apocalyptic number.

25103430 is an abundant number, since it is smaller than the sum of its proper divisors (46101834).

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

25103430 is a wasteful number, since it uses less digits than its factorization.

25103430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25381 (or 25378 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25103430 is about 5010.3323243074. The cubic root of 25103430 is about 292.8044605385.

Adding to 25103430 its reverse (3430152), we get a palindrome (28533582).

The spelling of 25103430 in words is "twenty-five million, one hundred three thousand, four hundred thirty".