25479012 has 24 divisors (see below), whose sum is σ = 64024576. Its totient is φ = 7839648.

The previous prime is 25479011. The next prime is 25479017. The reversal of 25479012 is 21097452.

It is a super-2 number, since 2×25479012² = 1298360104992288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25479011) 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, 81508 + ... + 81819.

Almost surely, 2^25479012 is an apocalyptic number.

It is an amenable number.

25479012 is an abundant number, since it is smaller than the sum of its proper divisors (38545564).

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

25479012 is a wasteful number, since it uses less digits than its factorization.

25479012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163347 (or 163345 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 25479012 is about 5047.6739197377. The cubic root of 25479012 is about 294.2574911104.

The spelling of 25479012 in words is "twenty-five million, four hundred seventy-nine thousand, twelve".