51500463 has 16 divisors (see below), whose sum is σ = 83093760. Its totient is φ = 27697536.

The previous prime is 51500461. The next prime is 51500467. The reversal of 51500463 is 36400515.

It is not a de Polignac number, because 51500463 - 2¹ = 51500461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51500461) 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, 71773 + ... + 72486.

It is an arithmetic number, because the mean of its divisors is an integer number (5193360).

Almost surely, 2^51500463 is an apocalyptic number.

51500463 is a deficient number, since it is larger than the sum of its proper divisors (31593297).

51500463 is a wasteful number, since it uses less digits than its factorization.

51500463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144286.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 51500463 is about 7176.3823058697. The cubic root of 51500463 is about 372.0520579823.

Adding to 51500463 its reverse (36400515), we get a palindrome (87900978).

The spelling of 51500463 in words is "fifty-one million, five hundred thousand, four hundred sixty-three".