55553533 has 16 divisors (see below), whose sum is σ = 67011840. Its totient is φ = 45023616.

The previous prime is 55553521. The next prime is 55553567. The reversal of 55553533 is 33535555.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55553533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55553573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12391 + ... + 16267.

It is an arithmetic number, because the mean of its divisors is an integer number (4188240).

Almost surely, 2^55553533 is an apocalyptic number.

It is an amenable number.

55553533 is a deficient number, since it is larger than the sum of its proper divisors (11458307).

55553533 is a wasteful number, since it uses less digits than its factorization.

55553533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996.

The product of its digits is 84375, while the sum is 34.

The square root of 55553533 is about 7453.4242466131. The cubic root of 55553533 is about 381.5667836319.

The spelling of 55553533 in words is "fifty-five million, five hundred fifty-three thousand, five hundred thirty-three".