55175565 has 16 divisors (see below), whose sum is σ = 88665408. Its totient is φ = 29298816.

The previous prime is 55175543. The next prime is 55175569. The reversal of 55175565 is 56557155.

It is not a de Polignac number, because 55175565 - 2⁷ = 55175437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55175569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4399 + ... + 11388.

It is an arithmetic number, because the mean of its divisors is an integer number (5541588).

Almost surely, 2^55175565 is an apocalyptic number.

It is an amenable number.

55175565 is a deficient number, since it is larger than the sum of its proper divisors (33489843).

55175565 is a wasteful number, since it uses less digits than its factorization.

55175565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16028.

The product of its digits is 131250, while the sum is 39.

The square root of 55175565 is about 7428.0256461593. The cubic root of 55175565 is about 380.6994619487.

The spelling of 55175565 in words is "fifty-five million, one hundred seventy-five thousand, five hundred sixty-five".