25219012 has 48 divisors (see below), whose sum is σ = 55068160. Its totient is φ = 9839232.

The previous prime is 25218997. The next prime is 25219021. The reversal of 25219012 is 21091252.

It is a super-2 number, since 2×25219012² = 1271997132512288, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28318 + ... + 29194.

Almost surely, 2^25219012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25219012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27534080).

25219012 is an abundant number, since it is smaller than the sum of its proper divisors (29849148).

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

25219012 is a wasteful number, since it uses less digits than its factorization.

25219012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 978 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 25219012 is about 5021.8534427042. The cubic root of 25219012 is about 293.2531524422.

The spelling of 25219012 in words is "twenty-five million, two hundred nineteen thousand, twelve".