51610155106 has 4 divisors (see below), whose sum is σ = 77415232662. Its totient is φ = 25805077552.

The previous prime is 51610155073. The next prime is 51610155127. The reversal of 51610155106 is 60155101615.

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

It can be written as a sum of positive squares in only one way, i.e., 42206004481 + 9404150625 = 205441^2 + 96975^2 .

It is a super-2 number, since 2×51610155106² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12902538775 + ... + 12902538778.

Almost surely, 2^51610155106 is an apocalyptic number.

51610155106 is a deficient number, since it is larger than the sum of its proper divisors (25805077556).

51610155106 is a wasteful number, since it uses less digits than its factorization.

51610155106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25805077555.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 51610155106 in words is "fifty-one billion, six hundred ten million, one hundred fifty-five thousand, one hundred six".