55036603 has 4 divisors (see below), whose sum is σ = 56316568. Its totient is φ = 53756640.

The previous prime is 55036601. The next prime is 55036679. The reversal of 55036603 is 30663055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55036603 - 2¹ = 55036601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55036601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639918 + ... + 640003.

It is an arithmetic number, because the mean of its divisors is an integer number (14079142).

Almost surely, 2^55036603 is an apocalyptic number.

55036603 is a deficient number, since it is larger than the sum of its proper divisors (1279965).

55036603 is a wasteful number, since it uses less digits than its factorization.

55036603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279964.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 55036603 is about 7418.6658504073. The cubic root of 55036603 is about 380.3795906827.

Adding to 55036603 its reverse (30663055), we get a palindrome (85699658).

The spelling of 55036603 in words is "fifty-five million, thirty-six thousand, six hundred three".