55646253 has 48 divisors (see below), whose sum is σ = 92894256. Its totient is φ = 31795200.

The previous prime is 55646251. The next prime is 55646309. The reversal of 55646253 is 35264655.

It is a happy number.

55646253 is a `hidden beast` number, since 5 + 5 + 646 + 2 + 5 + 3 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 248004 + 55398249 = 498^2 + 7443^2 .

It is not a de Polignac number, because 55646253 - 2¹ = 55646251 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55646251) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 200751 + ... + 201027.

It is an arithmetic number, because the mean of its divisors is an integer number (1935297).

Almost surely, 2^55646253 is an apocalyptic number.

It is an amenable number.

55646253 is a deficient number, since it is larger than the sum of its proper divisors (37248003).

55646253 is a wasteful number, since it uses less digits than its factorization.

55646253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 411 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 55646253 is about 7459.6416133753. The cubic root of 55646253 is about 381.7789466023.

The spelling of 55646253 in words is "fifty-five million, six hundred forty-six thousand, two hundred fifty-three".