51522168106 has 4 divisors (see below), whose sum is σ = 77283252162. Its totient is φ = 25761084052.

The previous prime is 51522168091. The next prime is 51522168119. The reversal of 51522168106 is 60186122515.

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., 37271777481 + 14250390625 = 193059^2 + 119375^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12880542025 + ... + 12880542028.

Almost surely, 2^51522168106 is an apocalyptic number.

51522168106 is a deficient number, since it is larger than the sum of its proper divisors (25761084056).

51522168106 is a wasteful number, since it uses less digits than its factorization.

51522168106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25761084055.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 51522168106 in words is "fifty-one billion, five hundred twenty-two million, one hundred sixty-eight thousand, one hundred six".