51175051007 has 4 divisors (see below), whose sum is σ = 52825859136. Its totient is φ = 49524242880.

The previous prime is 51175050967. The next prime is 51175051013. The reversal of 51175051007 is 70015057115.

It is a happy number.

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 51175051007 - 2³⁴ = 33995181823 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 (51175051607) 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, 825404018 + ... + 825404079.

It is an arithmetic number, because the mean of its divisors is an integer number (13206464784).

Almost surely, 2^51175051007 is an apocalyptic number.

51175051007 is a deficient number, since it is larger than the sum of its proper divisors (1650808129).

51175051007 is a wasteful number, since it uses less digits than its factorization.

51175051007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650808128.

The product of its (nonzero) digits is 6125, while the sum is 32.

The spelling of 51175051007 in words is "fifty-one billion, one hundred seventy-five million, fifty-one thousand, seven".