25001312 has 48 divisors (see below), whose sum is σ = 56609280. Its totient is φ = 10647168.

The previous prime is 25001303. The next prime is 25001329. The reversal of 25001312 is 21310052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53303 + ... + 53769.

It is an arithmetic number, because the mean of its divisors is an integer number (1179360).

Almost surely, 2^25001312 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 25001312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28304640).

25001312 is an abundant number, since it is smaller than the sum of its proper divisors (31607968).

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

25001312 is a wasteful number, since it uses less digits than its factorization.

25001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 25001312 is about 5000.1311982787. The cubic root of 25001312 is about 292.4068888135.

Adding to 25001312 its reverse (21310052), we get a palindrome (46311364).

The spelling of 25001312 in words is "twenty-five million, one thousand, three hundred twelve".