55905590503 has 8 divisors (see below), whose sum is σ = 65251510272. Its totient is φ = 46899522456.

The previous prime is 55905590497. The next prime is 55905590513. The reversal of 55905590503 is 30509550955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55905590503 - 2²¹ = 55903493351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55905590513) 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 7 ways as a sum of consecutive naturals, for example, 84962575 + ... + 84963232.

It is an arithmetic number, because the mean of its divisors is an integer number (8156438784).

Almost surely, 2^55905590503 is an apocalyptic number.

55905590503 is a deficient number, since it is larger than the sum of its proper divisors (9345919769).

55905590503 is a wasteful number, since it uses less digits than its factorization.

55905590503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169925861.

The product of its (nonzero) digits is 759375, while the sum is 46.

The spelling of 55905590503 in words is "fifty-five billion, nine hundred five million, five hundred ninety thousand, five hundred three".