55117270 has 32 divisors (see below), whose sum is σ = 107231040. Its totient is φ = 20277120.

The previous prime is 55117217. The next prime is 55117277. The reversal of 55117270 is 7271155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55117277) 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, 46080 + ... + 47260.

It is an arithmetic number, because the mean of its divisors is an integer number (3350970).

Almost surely, 2^55117270 is an apocalyptic number.

55117270 is a deficient number, since it is larger than the sum of its proper divisors (52113770).

55117270 is a wasteful number, since it uses less digits than its factorization.

55117270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 55117270 is about 7424.1006189302. The cubic root of 55117270 is about 380.5653404067.

The spelling of 55117270 in words is "fifty-five million, one hundred seventeen thousand, two hundred seventy".