55540153 has 4 divisors (see below), whose sum is σ = 55555060. Its totient is φ = 55525248.

The previous prime is 55540123. The next prime is 55540159. The reversal of 55540153 is 35104555.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 39476089 + 16064064 = 6283^2 + 4008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55540153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55540159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3601 + ... + 11137.

It is an arithmetic number, because the mean of its divisors is an integer number (13888765).

Almost surely, 2^55540153 is an apocalyptic number.

It is an amenable number.

55540153 is a deficient number, since it is larger than the sum of its proper divisors (14907).

55540153 is an equidigital number, since it uses as much as digits as its factorization.

55540153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14906.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 55540153 is about 7452.5266185368. The cubic root of 55540153 is about 381.5361478757.

The spelling of 55540153 in words is "fifty-five million, five hundred forty thousand, one hundred fifty-three".