55555061015 has 8 divisors (see below), whose sum is σ = 66678733440. Its totient is φ = 44435608672.

The previous prime is 55555060997. The next prime is 55555061017. The reversal of 55555061015 is 51016055555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55555061015 - 2²⁰ = 55554012439 is a prime.

It is a super-3 number, since 3×55555061015³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55555061015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555061017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025984 + ... + 1078773.

It is an arithmetic number, because the mean of its divisors is an integer number (8334841680).

Almost surely, 2^55555061015 is an apocalyptic number.

55555061015 is a deficient number, since it is larger than the sum of its proper divisors (11123672425).

55555061015 is a wasteful number, since it uses less digits than its factorization.

55555061015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110041.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 55555061015 in words is "fifty-five billion, five hundred fifty-five million, sixty-one thousand, fifteen".