51182663 has 4 divisors (see below), whose sum is σ = 58494480. Its totient is φ = 43870848.

The previous prime is 51182653. The next prime is 51182711. The reversal of 51182663 is 36628115.

It is a happy number.

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

It is not a de Polignac number, because 51182663 - 2⁴ = 51182647 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 (51182603) 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, 3655898 + ... + 3655911.

It is an arithmetic number, because the mean of its divisors is an integer number (14623620).

Almost surely, 2^51182663 is an apocalyptic number.

51182663 is a deficient number, since it is larger than the sum of its proper divisors (7311817).

51182663 is an equidigital number, since it uses as much as digits as its factorization.

51182663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7311816.

The product of its digits is 8640, while the sum is 32.

The square root of 51182663 is about 7154.2059657239. The cubic root of 51182663 is about 371.2851898608.

The spelling of 51182663 in words is "fifty-one million, one hundred eighty-two thousand, six hundred sixty-three".