55515063 has 8 divisors (see below), whose sum is σ = 75233776. Its totient is φ = 36403200.

The previous prime is 55515041. The next prime is 55515067. The reversal of 55515063 is 36051555.

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

It is a de Polignac number, because none of the positive numbers 2^k-55515063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55515063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55515067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151498 + ... + 151863.

It is an arithmetic number, because the mean of its divisors is an integer number (9404222).

Almost surely, 2^55515063 is an apocalyptic number.

55515063 is a deficient number, since it is larger than the sum of its proper divisors (19718713).

55515063 is a wasteful number, since it uses less digits than its factorization.

55515063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303425.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 55515063 is about 7450.8431066558. The cubic root of 55515063 is about 381.4786868421.

The spelling of 55515063 in words is "fifty-five million, five hundred fifteen thousand, sixty-three".