55642566203 has 8 divisors (see below), whose sum is σ = 63593227008. Its totient is φ = 47692336104.

The previous prime is 55642566179. The next prime is 55642566211. The reversal of 55642566203 is 30266524655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55642566203 - 2⁶ = 55642566139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55642566293) 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, 247100 + ... + 415142.

It is an arithmetic number, because the mean of its divisors is an integer number (7949153376).

Almost surely, 2^55642566203 is an apocalyptic number.

55642566203 is a deficient number, since it is larger than the sum of its proper divisors (7950660805).

55642566203 is a wasteful number, since it uses less digits than its factorization.

55642566203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215353.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 55642566203 in words is "fifty-five billion, six hundred forty-two million, five hundred sixty-six thousand, two hundred three".