51124412 has 6 divisors (see below), whose sum is σ = 89467728. Its totient is φ = 25562204.

The previous prime is 51124399. The next prime is 51124429. The reversal of 51124412 is 21442115.

It is a happy number.

It is a super-2 number, since 2×51124412² = 5227411004691488, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 6390548 + ... + 6390555.

It is an arithmetic number, because the mean of its divisors is an integer number (14911288).

Almost surely, 2^51124412 is an apocalyptic number.

It is an amenable number.

51124412 is a deficient number, since it is larger than the sum of its proper divisors (38343316).

51124412 is a wasteful number, since it uses less digits than its factorization.

51124412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12781107 (or 12781105 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 51124412 is about 7150.1337050436. The cubic root of 51124412 is about 371.1442831399.

Adding to 51124412 its reverse (21442115), we get a palindrome (72566527).

The spelling of 51124412 in words is "fifty-one million, one hundred twenty-four thousand, four hundred twelve".