55201023 has 36 divisors (see below), whose sum is σ = 89238760. Its totient is φ = 32783616.

The previous prime is 55201021. The next prime is 55201033. The reversal of 55201023 is 32010255.

It is a happy number.

It is not a de Polignac number, because 55201023 - 2¹ = 55201021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55200987 and 55201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55201021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48861 + ... + 49977.

Almost surely, 2^55201023 is an apocalyptic number.

55201023 is a deficient number, since it is larger than the sum of its proper divisors (34037737).

55201023 is a wasteful number, since it uses less digits than its factorization.

55201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 55201023 is about 7429.7390936694. The cubic root of 55201023 is about 380.7580045100.

Adding to 55201023 its reverse (32010255), we get a palindrome (87211278).

The spelling of 55201023 in words is "fifty-five million, two hundred one thousand, twenty-three".