51602863 has 4 divisors (see below), whose sum is σ = 55572328. Its totient is φ = 47633400.

The previous prime is 51602857. The next prime is 51602893. The reversal of 51602863 is 36820615.

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-51602863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51602893) 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, 1984713 + ... + 1984738.

It is an arithmetic number, because the mean of its divisors is an integer number (13893082).

Almost surely, 2^51602863 is an apocalyptic number.

51602863 is a deficient number, since it is larger than the sum of its proper divisors (3969465).

51602863 is a wasteful number, since it uses less digits than its factorization.

51602863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969464.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 51602863 is about 7183.5132769419. The cubic root of 51602863 is about 372.2984823560.

The spelling of 51602863 in words is "fifty-one million, six hundred two thousand, eight hundred sixty-three".