51026463 has 24 divisors (see below), whose sum is σ = 76922160. Its totient is φ = 33430320.

The previous prime is 51026429. The next prime is 51026477. The reversal of 51026463 is 36462015.

51026463 is a `hidden beast` number, since 5 + 10 + 2 + 646 + 3 = 666.

51026463 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51026463 - 2¹⁰ = 51025439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51036463) 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 23 ways as a sum of consecutive naturals, for example, 120993 + ... + 121413.

It is an arithmetic number, because the mean of its divisors is an integer number (3205090).

Almost surely, 2^51026463 is an apocalyptic number.

51026463 is a deficient number, since it is larger than the sum of its proper divisors (25895697).

51026463 is an equidigital number, since it uses as much as digits as its factorization.

51026463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 51026463 is about 7143.2809688546. The cubic root of 51026463 is about 370.9071071280.

Adding to 51026463 its reverse (36462015), we get a palindrome (87488478).

It can be divided in two parts, 5 and 1026463, that multiplied together give a palindrome (5132315).

The spelling of 51026463 in words is "fifty-one million, twenty-six thousand, four hundred sixty-three".