51957412 has 12 divisors (see below), whose sum is σ = 97919836. Its totient is φ = 23980320.

The previous prime is 51957407. The next prime is 51957413. The reversal of 51957412 is 21475915.

It can be written as a sum of positive squares in 2 ways, for example, as 8608356 + 43349056 = 2934^2 + 6584^2 .

It is not an unprimeable number, because it can be changed into a prime (51957413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499539 + ... + 499642.

Almost surely, 2^51957412 is an apocalyptic number.

51957412 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51957412 is a deficient number, since it is larger than the sum of its proper divisors (45962424).

51957412 is a wasteful number, since it uses less digits than its factorization.

51957412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999198 (or 999196 counting only the distinct ones).

The product of its digits is 12600, while the sum is 34.

The square root of 51957412 is about 7208.1489995699. The cubic root of 51957412 is about 373.1491902964.

The spelling of 51957412 in words is "fifty-one million, nine hundred fifty-seven thousand, four hundred twelve".