55043552403 has 32 divisors (see below), whose sum is σ = 93582213120. Its totient is φ = 31322920320.

The previous prime is 55043552393. The next prime is 55043552441. The reversal of 55043552403 is 30425534055.

It is not a de Polignac number, because 55043552403 - 2⁶ = 55043552339 is a prime.

It is a super-2 number, since 2×55043552403² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55043552483) 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 31 ways as a sum of consecutive naturals, for example, 558675 + ... + 649772.

It is an arithmetic number, because the mean of its divisors is an integer number (2924444160).

Almost surely, 2^55043552403 is an apocalyptic number.

55043552403 is a deficient number, since it is larger than the sum of its proper divisors (38538660717).

55043552403 is a wasteful number, since it uses less digits than its factorization.

55043552403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208704 (or 1208698 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 36.

The spelling of 55043552403 in words is "fifty-five billion, forty-three million, five hundred fifty-two thousand, four hundred three".