51564283 has 8 divisors (see below), whose sum is σ = 52812000. Its totient is φ = 50326848.

The previous prime is 51564269. The next prime is 51564287. The reversal of 51564283 is 38246515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51564283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51564287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8103 + ... + 12991.

It is an arithmetic number, because the mean of its divisors is an integer number (6601500).

Almost surely, 2^51564283 is an apocalyptic number.

51564283 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

51564283 is a deficient number, since it is larger than the sum of its proper divisors (1247717).

51564283 is a wasteful number, since it uses less digits than its factorization.

51564283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141.

The product of its digits is 28800, while the sum is 34.

The square root of 51564283 is about 7180.8274592835. The cubic root of 51564283 is about 372.2056783552.

The spelling of 51564283 in words is "fifty-one million, five hundred sixty-four thousand, two hundred eighty-three".