55444253 has 4 divisors (see below), whose sum is σ = 55993308. Its totient is φ = 54895200.

The previous prime is 55444217. The next prime is 55444273. The reversal of 55444253 is 35244455.

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 52157284 + 3286969 = 7222^2 + 1813^2 .

It is a cyclic number.

It is not a de Polignac number, because 55444253 - 2¹⁶ = 55378717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55444273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274376 + ... + 274577.

It is an arithmetic number, because the mean of its divisors is an integer number (13998327).

Almost surely, 2^55444253 is an apocalyptic number.

It is an amenable number.

55444253 is a deficient number, since it is larger than the sum of its proper divisors (549055).

55444253 is a wasteful number, since it uses less digits than its factorization.

55444253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549054.

The product of its digits is 48000, while the sum is 32.

The square root of 55444253 is about 7446.0897792063. The cubic root of 55444253 is about 381.3164245814.

The spelling of 55444253 in words is "fifty-five million, four hundred forty-four thousand, two hundred fifty-three".