51963723 has 12 divisors (see below), whose sum is σ = 85781488. Its totient is φ = 29693520.

The previous prime is 51963721. The next prime is 51963731. The reversal of 51963723 is 32736915.

51963723 is a `hidden beast` number, since 5 + 19 + 637 + 2 + 3 = 666.

It is not a de Polignac number, because 51963723 - 2¹ = 51963721 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51963721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412348 + ... + 412473.

Almost surely, 2^51963723 is an apocalyptic number.

51963723 is a deficient number, since it is larger than the sum of its proper divisors (33817765).

51963723 is a wasteful number, since it uses less digits than its factorization.

51963723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824834 (or 824831 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 51963723 is about 7208.5867546975. The cubic root of 51963723 is about 373.1642978567.

The spelling of 51963723 in words is "fifty-one million, nine hundred sixty-three thousand, seven hundred twenty-three".