55572201101 has 4 divisors (see below), whose sum is σ = 55633472352. Its totient is φ = 55510929852.

The previous prime is 55572201073. The next prime is 55572201103. The reversal of 55572201101 is 10110227555.

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 55572201101 - 2⁶ = 55572201037 is a prime.

It is a super-2 number, since 2×55572201101² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55572201103) 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, 30634265 + ... + 30636078.

It is an arithmetic number, because the mean of its divisors is an integer number (13908368088).

Almost surely, 2^55572201101 is an apocalyptic number.

It is an amenable number.

55572201101 is a deficient number, since it is larger than the sum of its proper divisors (61271251).

55572201101 is an equidigital number, since it uses as much as digits as its factorization.

55572201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61271250.

The product of its (nonzero) digits is 3500, while the sum is 29.

Adding to 55572201101 its reverse (10110227555), we get a palindrome (65682428656).

The spelling of 55572201101 in words is "fifty-five billion, five hundred seventy-two million, two hundred one thousand, one hundred one".