72006055051 has 4 divisors (see below), whose sum is σ = 82292634352. Its totient is φ = 61719475752.

The previous prime is 72006055027. The next prime is 72006055063. The reversal of 72006055051 is 15055060027.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72006055051 - 2²⁹ = 71469184139 is a prime.

It is a super-2 number, since 2×72006055051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72006055351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5143289640 + ... + 5143289653.

It is an arithmetic number, because the mean of its divisors is an integer number (20573158588).

Almost surely, 2^72006055051 is an apocalyptic number.

72006055051 is a deficient number, since it is larger than the sum of its proper divisors (10286579301).

72006055051 is a wasteful number, since it uses less digits than its factorization.

72006055051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10286579300.

The product of its (nonzero) digits is 10500, while the sum is 31.

The spelling of 72006055051 in words is "seventy-two billion, six million, fifty-five thousand, fifty-one".