51583963 has 4 divisors (see below), whose sum is σ = 53826768. Its totient is φ = 49341160.

The previous prime is 51583927. The next prime is 51583981. The reversal of 51583963 is 36938515.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51583963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51583913) 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, 1121368 + ... + 1121413.

It is an arithmetic number, because the mean of its divisors is an integer number (13456692).

Almost surely, 2^51583963 is an apocalyptic number.

51583963 is a deficient number, since it is larger than the sum of its proper divisors (2242805).

51583963 is a wasteful number, since it uses less digits than its factorization.

51583963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242804.

The product of its digits is 97200, while the sum is 40.

The square root of 51583963 is about 7182.1976441755. The cubic root of 51583963 is about 372.2530242804.

The spelling of 51583963 in words is "fifty-one million, five hundred eighty-three thousand, nine hundred sixty-three".