51963543 has 12 divisors (see below), whose sum is σ = 79473888. Its totient is φ = 32604480.

The previous prime is 51963511. The next prime is 51963547. The reversal of 51963543 is 34536915.

51963543 is a `hidden beast` number, since 5 + 19 + 635 + 4 + 3 = 666.

It is not a de Polignac number, because 51963543 - 2⁵ = 51963511 is a prime.

It is a super-2 number, since 2×51963543² = 5400419602225698, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51963498 and 51963507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51963547) 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, 169663 + ... + 169968.

It is an arithmetic number, because the mean of its divisors is an integer number (6622824).

Almost surely, 2^51963543 is an apocalyptic number.

51963543 is a deficient number, since it is larger than the sum of its proper divisors (27510345).

51963543 is a wasteful number, since it uses less digits than its factorization.

51963543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339654 (or 339651 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 51963543 is about 7208.5742695765. The cubic root of 51963543 is about 373.1638669814.

The spelling of 51963543 in words is "fifty-one million, nine hundred sixty-three thousand, five hundred forty-three".