51633923 has 4 divisors (see below), whose sum is σ = 56327928. Its totient is φ = 46939920.

The previous prime is 51633917. The next prime is 51633929. The reversal of 51633923 is 32933615.

51633923 is nontrivially palindromic in base 8.

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

It is an interprime number because it is at equal distance from previous prime (51633917) and next prime (51633929).

It is a cyclic number.

It is not a de Polignac number, because 51633923 - 2⁶ = 51633859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51633923.

It is not an unprimeable number, because it can be changed into a prime (51633929) 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, 2346986 + ... + 2347007.

It is an arithmetic number, because the mean of its divisors is an integer number (14081982).

Almost surely, 2^51633923 is an apocalyptic number.

51633923 is a deficient number, since it is larger than the sum of its proper divisors (4694005).

51633923 is a wasteful number, since it uses less digits than its factorization.

51633923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694004.

The product of its digits is 14580, while the sum is 32.

The square root of 51633923 is about 7185.6748465262. The cubic root of 51633923 is about 372.3731634293.

The spelling of 51633923 in words is "fifty-one million, six hundred thirty-three thousand, nine hundred twenty-three".