55613503 has 8 divisors (see below), whose sum is σ = 62761680. Its totient is φ = 48814080.

The previous prime is 55613489. The next prime is 55613521. The reversal of 55613503 is 30531655.

It is a happy number.

55613503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55613503 - 2¹³ = 55605311 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 (55613533) 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 7 ways as a sum of consecutive naturals, for example, 86850 + ... + 87487.

It is an arithmetic number, because the mean of its divisors is an integer number (7845210).

Almost surely, 2^55613503 is an apocalyptic number.

55613503 is a deficient number, since it is larger than the sum of its proper divisors (7148177).

55613503 is a wasteful number, since it uses less digits than its factorization.

55613503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174377.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 55613503 is about 7457.4461446262. The cubic root of 55613503 is about 381.7040346150.

The spelling of 55613503 in words is "fifty-five million, six hundred thirteen thousand, five hundred three".