25143212 has 12 divisors (see below), whose sum is σ = 44495640. Its totient is φ = 12430176.

The previous prime is 25143197. The next prime is 25143241. The reversal of 25143212 is 21234152.

It is a super-2 number, since 2×25143212² = 1264362219353888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34958 + ... + 35669.

It is an arithmetic number, because the mean of its divisors is an integer number (3707970).

Almost surely, 2^25143212 is an apocalyptic number.

It is an amenable number.

25143212 is a deficient number, since it is larger than the sum of its proper divisors (19352428).

25143212 is a wasteful number, since it uses less digits than its factorization.

25143212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70720 (or 70718 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 25143212 is about 5014.3007488582. The cubic root of 25143212 is about 292.9590502941.

Adding to 25143212 its reverse (21234152), we get a palindrome (46377364).

The spelling of 25143212 in words is "twenty-five million, one hundred forty-three thousand, two hundred twelve".