51200023 has 16 divisors (see below), whose sum is σ = 59973120. Its totient is φ = 42804000.

The previous prime is 51199991. The next prime is 51200027. The reversal of 51200023 is 32000215.

It is a cyclic number.

It is not a de Polignac number, because 51200023 - 2⁵ = 51199991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51199976 and 51200012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51200027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61953 + ... + 62773.

It is an arithmetic number, because the mean of its divisors is an integer number (3748320).

Almost surely, 2^51200023 is an apocalyptic number.

51200023 is a deficient number, since it is larger than the sum of its proper divisors (8773097).

51200023 is a wasteful number, since it uses less digits than its factorization.

51200023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 51200023 is about 7155.4191351730. The cubic root of 51200023 is about 371.3271622914.

Adding to 51200023 its reverse (32000215), we get a palindrome (83200238).

The spelling of 51200023 in words is "fifty-one million, two hundred thousand, twenty-three".