55013553 has 16 divisors (see below), whose sum is σ = 93144960. Its totient is φ = 31436208.

The previous prime is 55013537. The next prime is 55013557. The reversal of 55013553 is 35531055.

55013553 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 55013553 - 2⁴ = 55013537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55013557) 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 15 ways as a sum of consecutive naturals, for example, 145350 + ... + 145727.

It is an arithmetic number, because the mean of its divisors is an integer number (5821560).

Almost surely, 2^55013553 is an apocalyptic number.

It is an amenable number.

55013553 is a deficient number, since it is larger than the sum of its proper divisors (38131407).

55013553 is a wasteful number, since it uses less digits than its factorization.

55013553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291093 (or 291087 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 55013553 is about 7417.1121738855. The cubic root of 55013553 is about 380.3264807317.

The spelling of 55013553 in words is "fifty-five million, thirteen thousand, five hundred fifty-three".