51520067105 has 16 divisors (see below), whose sum is σ = 67088032704. Its totient is φ = 37755157440.

The previous prime is 51520067087. The next prime is 51520067113. The reversal of 51520067105 is 50176002515.

It is not a de Polignac number, because 51520067105 - 2³² = 47225099809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3016739 + ... + 3033768.

It is an arithmetic number, because the mean of its divisors is an integer number (4193002044).

Almost surely, 2^51520067105 is an apocalyptic number.

It is an amenable number.

51520067105 is a deficient number, since it is larger than the sum of its proper divisors (15567965599).

51520067105 is a wasteful number, since it uses less digits than its factorization.

51520067105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050656.

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 51520067105 in words is "fifty-one billion, five hundred twenty million, sixty-seven thousand, one hundred five".