55355503 has 8 divisors (see below), whose sum is σ = 66014208. Its totient is φ = 45384504.

The previous prime is 55355473. The next prime is 55355527. The reversal of 55355503 is 30555355.

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 55355503 - 2⁵ = 55355471 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 (55355533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171751 + ... + 172072.

It is an arithmetic number, because the mean of its divisors is an integer number (8251776).

Almost surely, 2^55355503 is an apocalyptic number.

55355503 is a deficient number, since it is larger than the sum of its proper divisors (10658705).

55355503 is a wasteful number, since it uses less digits than its factorization.

55355503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343853.

The product of its (nonzero) digits is 28125, while the sum is 31.

The square root of 55355503 is about 7440.1278886858. The cubic root of 55355503 is about 381.1128573111.

The spelling of 55355503 in words is "fifty-five million, three hundred fifty-five thousand, five hundred three".