55540204201 has 4 divisors (see below), whose sum is σ = 57954995712. Its totient is φ = 53125412692.

The previous prime is 55540204151. The next prime is 55540204219. The reversal of 55540204201 is 10240204555.

55540204201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55540204201 - 2⁷ = 55540204073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55540204201.

It is not an unprimeable number, because it can be changed into a prime (55540204001) 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, 1207395721 + ... + 1207395766.

It is an arithmetic number, because the mean of its divisors is an integer number (14488748928).

Almost surely, 2^55540204201 is an apocalyptic number.

It is an amenable number.

55540204201 is a deficient number, since it is larger than the sum of its proper divisors (2414791511).

55540204201 is a wasteful number, since it uses less digits than its factorization.

55540204201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414791510.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 55540204201 its reverse (10240204555), we get a palindrome (65780408756).

The spelling of 55540204201 in words is "fifty-five billion, five hundred forty million, two hundred four thousand, two hundred one".