55427421002003 has 4 divisors (see below), whose sum is σ = 55427435910288. Its totient is φ = 55427406093720.

The previous prime is 55427421001957. The next prime is 55427421002029. The reversal of 55427421002003 is 30020012472455.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 55427421002003 - 2¹⁶ = 55427420936467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55427421007003) 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, 3172250 + ... + 10996272.

It is an arithmetic number, because the mean of its divisors is an integer number (13856858977572).

Almost surely, 2^{55427421002003} is an apocalyptic number.

55427421002003 is a deficient number, since it is larger than the sum of its proper divisors (14908285).

55427421002003 is an equidigital number, since it uses as much as digits as its factorization.

55427421002003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14908284.

The product of its (nonzero) digits is 67200, while the sum is 35.

Adding to 55427421002003 its reverse (30020012472455), we get a palindrome (85447433474458).

The spelling of 55427421002003 in words is "fifty-five trillion, four hundred twenty-seven billion, four hundred twenty-one million, two thousand, three".