25309134 has 24 divisors (see below), whose sum is σ = 55050840. Its totient is φ = 8403408.

The previous prime is 25309129. The next prime is 25309153. The reversal of 25309134 is 43190352.

It is a junction number, because it is equal to n+sod(n) for n = 25309098 and 25309107.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2229 + ... + 7455.

It is an arithmetic number, because the mean of its divisors is an integer number (2293785).

Almost surely, 2^25309134 is an apocalyptic number.

25309134 is an abundant number, since it is smaller than the sum of its proper divisors (29741706).

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

25309134 is a wasteful number, since it uses less digits than its factorization.

25309134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504 (or 5501 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 25309134 is about 5030.8184224836. The cubic root of 25309134 is about 293.6020577508.

Adding to 25309134 its reverse (43190352), we get a palindrome (68499486).

It can be divided in two parts, 2530 and 9134, that added together give a square (11664 = 108²).

The spelling of 25309134 in words is "twenty-five million, three hundred nine thousand, one hundred thirty-four".