55019503 has 12 divisors (see below), whose sum is σ = 69821352. Its totient is φ = 42871920.

The previous prime is 55019491. The next prime is 55019521. The reversal of 55019503 is 30591055.

It is not a de Polignac number, because 55019503 - 2¹³ = 55011311 is a prime.

It is a super-4 number, since 4×55019503⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55019543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50500 + ... + 51577.

It is an arithmetic number, because the mean of its divisors is an integer number (5818446).

Almost surely, 2^55019503 is an apocalyptic number.

55019503 is a deficient number, since it is larger than the sum of its proper divisors (14801849).

55019503 is a wasteful number, since it uses less digits than its factorization.

55019503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102102 (or 102095 counting only the distinct ones).

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 55019503 is about 7417.5132625429. The cubic root of 55019503 is about 380.3401916621.

The spelling of 55019503 in words is "fifty-five million, nineteen thousand, five hundred three".