51235863 has 8 divisors (see below), whose sum is σ = 78073728. Its totient is φ = 29277624.

The previous prime is 51235843. The next prime is 51235883. The reversal of 51235863 is 36853215.

51235863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51235843) and next prime (51235883).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51235863 - 2⁵ = 51235831 is a prime.

It is a super-2 number, since 2×51235863² = 5250227314709538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51235843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219881 + ... + 1219922.

It is an arithmetic number, because the mean of its divisors is an integer number (9759216).

Almost surely, 2^51235863 is an apocalyptic number.

51235863 is a deficient number, since it is larger than the sum of its proper divisors (26837865).

51235863 is a wasteful number, since it uses less digits than its factorization.

51235863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439813.

The product of its digits is 21600, while the sum is 33.

The square root of 51235863 is about 7157.9230926296. The cubic root of 51235863 is about 371.4137850482.

The spelling of 51235863 in words is "fifty-one million, two hundred thirty-five thousand, eight hundred sixty-three".