51046623 has 24 divisors (see below), whose sum is σ = 75479040. Its totient is φ = 33234000.

The previous prime is 51046621. The next prime is 51046627. The reversal of 51046623 is 32664015.

It is not a de Polignac number, because 51046623 - 2¹ = 51046621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51046621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133090 + ... + 133472.

It is an arithmetic number, because the mean of its divisors is an integer number (3144960).

Almost surely, 2^51046623 is an apocalyptic number.

51046623 is a deficient number, since it is larger than the sum of its proper divisors (24432417).

51046623 is a wasteful number, since it uses less digits than its factorization.

51046623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 696 counting only the distinct ones).

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

The square root of 51046623 is about 7144.6919457734. The cubic root of 51046623 is about 370.9559478164.

The spelling of 51046623 in words is "fifty-one million, forty-six thousand, six hundred twenty-three".