55628423 has 2 divisors, whose sum is σ = 55628424. Its totient is φ = 55628422.

The previous prime is 55628411. The next prime is 55628449. The reversal of 55628423 is 32482655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55628423 - 2⁴ = 55628407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55628453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27814211 + 27814212.

It is an arithmetic number, because the mean of its divisors is an integer number (27814212).

Almost surely, 2^55628423 is an apocalyptic number.

55628423 is a deficient number, since it is larger than the sum of its proper divisors (1).

55628423 is an equidigital number, since it uses as much as digits as its factorization.

55628423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 55628423 is about 7458.4464199993. The cubic root of 55628423 is about 381.7381661039.

The spelling of 55628423 in words is "fifty-five million, six hundred twenty-eight thousand, four hundred twenty-three".