55450253 has 4 divisors (see below), whose sum is σ = 55610400. Its totient is φ = 55290108.

The previous prime is 55450249. The next prime is 55450259. The reversal of 55450253 is 35205455.

It is a happy number.

55450253 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35205455 = 5 ⋅7041091.

It is a cyclic number.

It is not a de Polignac number, because 55450253 - 2² = 55450249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55450259) 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, 79553 + ... + 80246.

It is an arithmetic number, because the mean of its divisors is an integer number (13902600).

Almost surely, 2^55450253 is an apocalyptic number.

It is an amenable number.

55450253 is a deficient number, since it is larger than the sum of its proper divisors (160147).

55450253 is a wasteful number, since it uses less digits than its factorization.

55450253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160146.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 55450253 is about 7446.4926643353. The cubic root of 55450253 is about 381.3301790339.

The spelling of 55450253 in words is "fifty-five million, four hundred fifty thousand, two hundred fifty-three".