55017017015 has 8 divisors (see below), whose sum is σ = 66084337968. Its totient is φ = 43971001920.

The previous prime is 55017016981. The next prime is 55017017017. The reversal of 55017017015 is 51071071055.

It is a happy number.

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

It is not a de Polignac number, because 55017017015 - 2²⁰ = 55015968439 is a prime.

It is a super-2 number, since 2×55017017015² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55017017017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5320781 + ... + 5331110.

It is an arithmetic number, because the mean of its divisors is an integer number (8260542246).

Almost surely, 2^55017017015 is an apocalyptic number.

55017017015 is a deficient number, since it is larger than the sum of its proper divisors (11067320953).

55017017015 is a wasteful number, since it uses less digits than its factorization.

55017017015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10652929.

The product of its (nonzero) digits is 6125, while the sum is 32.

The spelling of 55017017015 in words is "fifty-five billion, seventeen million, seventeen thousand, fifteen".