55032101 has 4 divisors (see below), whose sum is σ = 55396704. Its totient is φ = 54667500.

The previous prime is 55032097. The next prime is 55032119. The reversal of 55032101 is 10123055.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10123055 = 5 ⋅2024611.

It is a cyclic number.

It is not a de Polignac number, because 55032101 - 2² = 55032097 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 55032101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55031101) 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, 182075 + ... + 182376.

It is an arithmetic number, because the mean of its divisors is an integer number (13849176).

Almost surely, 2^55032101 is an apocalyptic number.

It is an amenable number.

55032101 is a deficient number, since it is larger than the sum of its proper divisors (364603).

55032101 is a wasteful number, since it uses less digits than its factorization.

55032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364602.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 55032101 is about 7418.3624203728. The cubic root of 55032101 is about 380.3692187028.

Adding to 55032101 its reverse (10123055), we get a palindrome (65155156).

The spelling of 55032101 in words is "fifty-five million, thirty-two thousand, one hundred one".