51005606015 has 48 divisors (see below), whose sum is σ = 77280924672. Its totient is φ = 32030401536.

The previous prime is 51005605927. The next prime is 51005606027. The reversal of 51005606015 is 51060650015.

It is not a de Polignac number, because 51005606015 - 2²⁶ = 50938497151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 341447 + ... + 467543.

It is an arithmetic number, because the mean of its divisors is an integer number (1610019264).

Almost surely, 2^51005606015 is an apocalyptic number.

51005606015 is a deficient number, since it is larger than the sum of its proper divisors (26275318657).

51005606015 is a wasteful number, since it uses less digits than its factorization.

51005606015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126256 (or 126249 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 51005606015 in words is "fifty-one billion, five million, six hundred six thousand, fifteen".