55517115 has 8 divisors (see below), whose sum is σ = 88827408. Its totient is φ = 29609120.

The previous prime is 55517093. The next prime is 55517141. The reversal of 55517115 is 51171555.

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

It is not a de Polignac number, because 55517115 - 2⁵ = 55517083 is a prime.

It is a super-3 number, since 3×55517115³ (a number of 24 digits) contains 333 as substring.

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, 1850556 + ... + 1850585.

It is an arithmetic number, because the mean of its divisors is an integer number (11103426).

Almost surely, 2^55517115 is an apocalyptic number.

55517115 is a deficient number, since it is larger than the sum of its proper divisors (33310293).

55517115 is a wasteful number, since it uses less digits than its factorization.

55517115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701149.

The product of its digits is 4375, while the sum is 30.

The square root of 55517115 is about 7450.9808079205. The cubic root of 55517115 is about 381.4833869756.

The spelling of 55517115 in words is "fifty-five million, five hundred seventeen thousand, one hundred fifteen".