51632463 has 4 divisors (see below), whose sum is σ = 68843288. Its totient is φ = 34421640.

The previous prime is 51632459. The next prime is 51632473. The reversal of 51632463 is 36423615.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51632463 - 2² = 51632459 is a prime.

It is a super-2 number, since 2×51632463² = 5331822470892738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51632463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51632473) 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, 8605408 + ... + 8605413.

It is an arithmetic number, because the mean of its divisors is an integer number (17210822).

Almost surely, 2^51632463 is an apocalyptic number.

51632463 is a deficient number, since it is larger than the sum of its proper divisors (17210825).

51632463 is a wasteful number, since it uses less digits than its factorization.

51632463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17210824.

The product of its digits is 12960, while the sum is 30.

The square root of 51632463 is about 7185.5732547932. The cubic root of 51632463 is about 372.3696536569.

It can be divided in two parts, 5163 and 2463, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 51632463 in words is "fifty-one million, six hundred thirty-two thousand, four hundred sixty-three".