55120270 has 16 divisors (see below), whose sum is σ = 100096560. Its totient is φ = 21852544.

The previous prime is 55120189. The next prime is 55120283. The reversal of 55120270 is 7202155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23260 + ... + 25519.

It is an arithmetic number, because the mean of its divisors is an integer number (6256035).

Almost surely, 2^55120270 is an apocalyptic number.

55120270 is a deficient number, since it is larger than the sum of its proper divisors (44976290).

55120270 is a wasteful number, since it uses less digits than its factorization.

55120270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48899.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 55120270 is about 7424.3026608564. The cubic root of 55120270 is about 380.5722449293.

The spelling of 55120270 in words is "fifty-five million, one hundred twenty thousand, two hundred seventy".