55120253 has 4 divisors (see below), whose sum is σ = 55145820. Its totient is φ = 55094688.

The previous prime is 55120189. The next prime is 55120283. The reversal of 55120253 is 35202155.

55120253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25938649 + 29181604 = 5093^2 + 5402^2 .

It is a cyclic number.

It is not a de Polignac number, because 55120253 - 2⁶ = 55120189 is a prime.

It is a super-3 number, since 3×55120253³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55120283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9218 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (13786455).

Almost surely, 2^55120253 is an apocalyptic number.

It is an amenable number.

55120253 is a deficient number, since it is larger than the sum of its proper divisors (25567).

55120253 is a wasteful number, since it uses less digits than its factorization.

55120253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25566.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55120253 is about 7424.3015159677. The cubic root of 55120253 is about 380.5722058043.

The spelling of 55120253 in words is "fifty-five million, one hundred twenty thousand, two hundred fifty-three".