55073555 has 4 divisors (see below), whose sum is σ = 66088272. Its totient is φ = 44058840.

The previous prime is 55073483. The next prime is 55073563. The reversal of 55073555 is 55537055.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55073555 - 2¹² = 55069459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5507351 + ... + 5507360.

It is an arithmetic number, because the mean of its divisors is an integer number (16522068).

Almost surely, 2^55073555 is an apocalyptic number.

55073555 is a deficient number, since it is larger than the sum of its proper divisors (11014717).

55073555 is a wasteful number, since it uses less digits than its factorization.

55073555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11014716.

The product of its (nonzero) digits is 65625, while the sum is 35.

The square root of 55073555 is about 7421.1559072694. The cubic root of 55073555 is about 380.4647015684.

The spelling of 55073555 in words is "fifty-five million, seventy-three thousand, five hundred fifty-five".