51838563 has 16 divisors (see below), whose sum is σ = 79946496. Its totient is φ = 29264160.

The previous prime is 51838513. The next prime is 51838583. The reversal of 51838563 is 36583815.

It is not a de Polignac number, because 51838563 - 2⁶ = 51838499 is a prime.

It is a super-2 number, since 2×51838563² = 5374473227809938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51838513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13128 + ... + 16613.

It is an arithmetic number, because the mean of its divisors is an integer number (4996656).

Almost surely, 2^51838563 is an apocalyptic number.

51838563 is a deficient number, since it is larger than the sum of its proper divisors (28107933).

51838563 is a wasteful number, since it uses less digits than its factorization.

51838563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29834.

The product of its digits is 86400, while the sum is 39.

The square root of 51838563 is about 7199.9002076418. The cubic root of 51838563 is about 372.8644553947.

The spelling of 51838563 in words is "fifty-one million, eight hundred thirty-eight thousand, five hundred sixty-three".