55021554241 has 4 divisors (see below), whose sum is σ = 55555744192. Its totient is φ = 54487364292.

The previous prime is 55021554239. The next prime is 55021554251. The reversal of 55021554241 is 14245512055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55021554241 - 2¹ = 55021554239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55021554197 and 55021554206.

It is not an unprimeable number, because it can be changed into a prime (55021554251) 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, 267094821 + ... + 267095026.

It is an arithmetic number, because the mean of its divisors is an integer number (13888936048).

Almost surely, 2^55021554241 is an apocalyptic number.

It is an amenable number.

55021554241 is a deficient number, since it is larger than the sum of its proper divisors (534189951).

55021554241 is a wasteful number, since it uses less digits than its factorization.

55021554241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534189950.

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 55021554241 in words is "fifty-five billion, twenty-one million, five hundred fifty-four thousand, two hundred forty-one".