55775003 has 4 divisors (see below), whose sum is σ = 55849440. Its totient is φ = 55700568.

The previous prime is 55774997. The next prime is 55775009. The reversal of 55775003 is 30057755.

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

It is an interprime number because it is at equal distance from previous prime (55774997) and next prime (55775009).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55775003 is a prime.

It is a super-2 number, since 2×55775003² = 6221701919300018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55775009) 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, 36083 + ... + 37596.

It is an arithmetic number, because the mean of its divisors is an integer number (13962360).

Almost surely, 2^55775003 is an apocalyptic number.

55775003 is a deficient number, since it is larger than the sum of its proper divisors (74437).

55775003 is an equidigital number, since it uses as much as digits as its factorization.

55775003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74436.

The product of its (nonzero) digits is 18375, while the sum is 32.

The square root of 55775003 is about 7468.2663985693. The cubic root of 55775003 is about 382.0731633481.

The spelling of 55775003 in words is "fifty-five million, seven hundred seventy-five thousand, three".