51552005155 has 32 divisors (see below), whose sum is σ = 71696179584. Its totient is φ = 34855059456.

The previous prime is 51552005143. The next prime is 51552005173. The reversal of 51552005155 is 55150025515.

It is not a de Polignac number, because 51552005155 - 2⁷ = 51552005027 is a prime.

It is a super-2 number, since 2×51552005155² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51552005155.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 729547 + ... + 797083.

It is an arithmetic number, because the mean of its divisors is an integer number (2240505612).

Almost surely, 2^51552005155 is an apocalyptic number.

51552005155 is a deficient number, since it is larger than the sum of its proper divisors (20144174429).

51552005155 is a wasteful number, since it uses less digits than its factorization.

51552005155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67855.

The product of its (nonzero) digits is 31250, while the sum is 34.

The spelling of 51552005155 in words is "fifty-one billion, five hundred fifty-two million, five thousand, one hundred fifty-five".