25705130 has 16 divisors (see below), whose sum is σ = 50475744. Its totient is φ = 9347280.

The previous prime is 25705123. The next prime is 25705133. The reversal of 25705130 is 3150752.

It is a junction number, because it is equal to n+sod(n) for n = 25705096 and 25705105.

It is not an unprimeable number, because it can be changed into a prime (25705133) 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 7 ways as a sum of consecutive naturals, for example, 116732 + ... + 116951.

It is an arithmetic number, because the mean of its divisors is an integer number (3154734).

Almost surely, 2^25705130 is an apocalyptic number.

25705130 is a deficient number, since it is larger than the sum of its proper divisors (24770614).

25705130 is a wasteful number, since it uses less digits than its factorization.

25705130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233701.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 25705130 is about 5070.0226823950. The cubic root of 25705130 is about 295.1254087114.

Adding to 25705130 its reverse (3150752), we get a palindrome (28855882).

The spelling of 25705130 in words is "twenty-five million, seven hundred five thousand, one hundred thirty".