55015565155 has 8 divisors (see below), whose sum is σ = 69902129952. Its totient is φ = 41423484288.

The previous prime is 55015565149. The next prime is 55015565239. The reversal of 55015565155 is 55156551055.

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 55015565155 - 2³ = 55015565147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323620887 + ... + 323621056.

It is an arithmetic number, because the mean of its divisors is an integer number (8737766244).

Almost surely, 2^55015565155 is an apocalyptic number.

55015565155 is a deficient number, since it is larger than the sum of its proper divisors (14886564797).

55015565155 is a wasteful number, since it uses less digits than its factorization.

55015565155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647241965.

The product of its (nonzero) digits is 468750, while the sum is 43.

The spelling of 55015565155 in words is "fifty-five billion, fifteen million, five hundred sixty-five thousand, one hundred fifty-five".