55511005051 has 4 divisors (see below), whose sum is σ = 55531575000. Its totient is φ = 55490435104.

The previous prime is 55511005037. The next prime is 55511005061. The reversal of 55511005051 is 15050011555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15050011555 = 5 ⋅3010002311.

It is a cyclic number.

It is not a de Polignac number, because 55511005051 - 2¹³ = 55510996859 is a prime.

It is a super-3 number, since 3×55511005051³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55511005031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10280926 + ... + 10286323.

It is an arithmetic number, because the mean of its divisors is an integer number (13882893750).

Almost surely, 2^55511005051 is an apocalyptic number.

55511005051 is a deficient number, since it is larger than the sum of its proper divisors (20569949).

55511005051 is a wasteful number, since it uses less digits than its factorization.

55511005051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20569948.

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 55511005051 in words is "fifty-five billion, five hundred eleven million, five thousand, fifty-one".