51151505015 has 16 divisors (see below), whose sum is σ = 66248168448. Its totient is φ = 37690742016.

The previous prime is 51151504981. The next prime is 51151505023. The reversal of 51151505015 is 51050515115.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51151505015 - 2⁶ = 51151504951 is a prime.

It is a Duffinian number.

It is a congruent 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, 831287 + ... + 890696.

It is an arithmetic number, because the mean of its divisors is an integer number (4140510528).

Almost surely, 2^51151505015 is an apocalyptic number.

51151505015 is a deficient number, since it is larger than the sum of its proper divisors (15096663433).

51151505015 is a wasteful number, since it uses less digits than its factorization.

51151505015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722458.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 51151505015 in words is "fifty-one billion, one hundred fifty-one million, five hundred five thousand, fifteen".