25308012 has 24 divisors (see below), whose sum is σ = 59247216. Its totient is φ = 8408128.

The previous prime is 25308011. The next prime is 25308071. The reversal of 25308012 is 21080352.

It is a self number, because there is not a number n which added to its sum of digits gives 25308012.

It is not an unprimeable number, because it can be changed into a prime (25308011) 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, 478 + ... + 7130.

It is an arithmetic number, because the mean of its divisors is an integer number (2468634).

Almost surely, 2^25308012 is an apocalyptic number.

It is an amenable number.

25308012 is an abundant number, since it is smaller than the sum of its proper divisors (33939204).

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

25308012 is a wasteful number, since it uses less digits than its factorization.

25308012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6977 (or 6975 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25308012 is about 5030.7069085766. The cubic root of 25308012 is about 293.5977190487.

Adding to 25308012 its reverse (21080352), we get a palindrome (46388364).

The spelling of 25308012 in words is "twenty-five million, three hundred eight thousand, twelve".