55645353 has 16 divisors (see below), whose sum is σ = 82968960. Its totient is φ = 36857808.

The previous prime is 55645351. The next prime is 55645361. The reversal of 55645353 is 35354655.

55645353 is a `hidden beast` number, since 5 + 5 + 645 + 3 + 5 + 3 = 666.

It is not a de Polignac number, because 55645353 - 2¹ = 55645351 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 not an unprimeable number, because it can be changed into a prime (55645351) 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 15 ways as a sum of consecutive naturals, for example, 2325 + ... + 10802.

It is an arithmetic number, because the mean of its divisors is an integer number (5185560).

Almost surely, 2^55645353 is an apocalyptic number.

It is an amenable number.

55645353 is a deficient number, since it is larger than the sum of its proper divisors (27323607).

55645353 is a wasteful number, since it uses less digits than its factorization.

55645353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13293 (or 13287 counting only the distinct ones).

The product of its digits is 135000, while the sum is 36.

The square root of 55645353 is about 7459.5812885175. The cubic root of 55645353 is about 381.7768883451.

The spelling of 55645353 in words is "fifty-five million, six hundred forty-five thousand, three hundred fifty-three".