55555005051 has 48 divisors (see below), whose sum is σ = 101433818304. Its totient is φ = 28511730432.

The previous prime is 55555005049. The next prime is 55555005053. The reversal of 55555005051 is 15050055555.

It is a happy number.

55555005051 is a `hidden beast` number, since 5 + 5 + 5 + 550 + 0 + 50 + 51 = 666.

It is an interprime number because it is at equal distance from previous prime (55555005049) and next prime (55555005053).

It is not a de Polignac number, because 55555005051 - 2¹ = 55555005049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55555004997 and 55555005015.

It is not an unprimeable number, because it can be changed into a prime (55555005053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 886356 + ... + 946961.

It is an arithmetic number, because the mean of its divisors is an integer number (2113204548).

Almost surely, 2^55555005051 is an apocalyptic number.

55555005051 is a deficient number, since it is larger than the sum of its proper divisors (45878813253).

55555005051 is a wasteful number, since it uses less digits than its factorization.

55555005051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833380 (or 1833377 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 36.

The spelling of 55555005051 in words is "fifty-five billion, five hundred fifty-five million, five thousand, fifty-one".