55394023 has 2 divisors, whose sum is σ = 55394024. Its totient is φ = 55394022.

The previous prime is 55394021. The next prime is 55394029. The reversal of 55394023 is 32049355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55394023 - 2¹ = 55394021 is a prime.

Together with 55394021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55394021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27697011 + 27697012.

It is an arithmetic number, because the mean of its divisors is an integer number (27697012).

Almost surely, 2^55394023 is an apocalyptic number.

55394023 is a deficient number, since it is larger than the sum of its proper divisors (1).

55394023 is an equidigital number, since it uses as much as digits as its factorization.

55394023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 55394023 is about 7442.7161036815. The cubic root of 55394023 is about 381.2012379452.

The spelling of 55394023 in words is "fifty-five million, three hundred ninety-four thousand, twenty-three".