51020912 has 10 divisors (see below), whose sum is σ = 98853048. Its totient is φ = 25510448.

The previous prime is 51020887. The next prime is 51020929. The reversal of 51020912 is 21902015.

It is a super-2 number, since 2×51020912² = 5206266922623488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1594388 + ... + 1594419.

Almost surely, 2^51020912 is an apocalyptic number.

It is an amenable number.

51020912 is a deficient number, since it is larger than the sum of its proper divisors (47832136).

51020912 is a wasteful number, since it uses less digits than its factorization.

51020912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188815 (or 3188809 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 51020912 is about 7142.8924113415. The cubic root of 51020912 is about 370.8936567215.

Adding to 51020912 its reverse (21902015), we get a palindrome (72922927).

The spelling of 51020912 in words is "fifty-one million, twenty thousand, nine hundred twelve".