51057651067 has 4 divisors (see below), whose sum is σ = 53744895880. Its totient is φ = 48370406256.

The previous prime is 51057651041. The next prime is 51057651077. The reversal of 51057651067 is 76015675015.

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

It is a cyclic number.

It is not a de Polignac number, because 51057651067 - 2⁷ = 51057650939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51057651077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343622378 + ... + 1343622415.

It is an arithmetic number, because the mean of its divisors is an integer number (13436223970).

Almost surely, 2^51057651067 is an apocalyptic number.

51057651067 is a deficient number, since it is larger than the sum of its proper divisors (2687244813).

51057651067 is a wasteful number, since it uses less digits than its factorization.

51057651067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687244812.

The product of its (nonzero) digits is 220500, while the sum is 43.

The spelling of 51057651067 in words is "fifty-one billion, fifty-seven million, six hundred fifty-one thousand, sixty-seven".