55630533 has 12 divisors (see below), whose sum is σ = 86284320. Its totient is φ = 31788792.

The previous prime is 55630507. The next prime is 55630637. The reversal of 55630533 is 33503655.

55630533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55630533 - 2⁹ = 55630021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55630533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55630933) 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 11 ways as a sum of consecutive naturals, for example, 189073 + ... + 189366.

It is an arithmetic number, because the mean of its divisors is an integer number (7190360).

Almost surely, 2^55630533 is an apocalyptic number.

It is an amenable number.

55630533 is a deficient number, since it is larger than the sum of its proper divisors (30653787).

55630533 is a wasteful number, since it uses less digits than its factorization.

55630533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378456 (or 378449 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 30.

The square root of 55630533 is about 7458.5878690272. The cubic root of 55630533 is about 381.7429925176.

The spelling of 55630533 in words is "fifty-five million, six hundred thirty thousand, five hundred thirty-three".