55270023 has 4 divisors (see below), whose sum is σ = 73693368. Its totient is φ = 36846680.

The previous prime is 55270013. The next prime is 55270051. The reversal of 55270023 is 32007255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55270023 - 2⁶ = 55269959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55269975 and 55270002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55270003) 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, 9211668 + ... + 9211673.

It is an arithmetic number, because the mean of its divisors is an integer number (18423342).

Almost surely, 2^55270023 is an apocalyptic number.

55270023 is a deficient number, since it is larger than the sum of its proper divisors (18423345).

55270023 is a wasteful number, since it uses less digits than its factorization.

55270023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18423344.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 55270023 is about 7434.3811443859. The cubic root of 55270023 is about 380.9165846829.

Adding to 55270023 its reverse (32007255), we get a palindrome (87277278).

The spelling of 55270023 in words is "fifty-five million, two hundred seventy thousand, twenty-three".