51027655963 has 4 divisors (see below), whose sum is σ = 51038123760. Its totient is φ = 51017188168.

The previous prime is 51027655949. The next prime is 51027655979. The reversal of 51027655963 is 36955672015.

It is a happy number.

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-51027655963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51027650963) 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, 5226583 + ... + 5236336.

It is an arithmetic number, because the mean of its divisors is an integer number (12759530940).

Almost surely, 2^51027655963 is an apocalyptic number.

51027655963 is a deficient number, since it is larger than the sum of its proper divisors (10467797).

51027655963 is a wasteful number, since it uses less digits than its factorization.

51027655963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10467796.

The product of its (nonzero) digits is 1701000, while the sum is 49.

The spelling of 51027655963 in words is "fifty-one billion, twenty-seven million, six hundred fifty-five thousand, nine hundred sixty-three".