55668923 has 2 divisors, whose sum is σ = 55668924. Its totient is φ = 55668922.

The previous prime is 55668913. The next prime is 55668929. The reversal of 55668923 is 32986655.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55668923 - 2⁶ = 55668859 is a prime.

It is not a weakly prime, because it can be changed into another prime (55668929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27834461 + 27834462.

It is an arithmetic number, because the mean of its divisors is an integer number (27834462).

Almost surely, 2^55668923 is an apocalyptic number.

55668923 is a deficient number, since it is larger than the sum of its proper divisors (1).

55668923 is an equidigital number, since it uses as much as digits as its factorization.

55668923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 44.

The square root of 55668923 is about 7461.1609686429. The cubic root of 55668923 is about 381.8307844961.

The spelling of 55668923 in words is "fifty-five million, six hundred sixty-eight thousand, nine hundred twenty-three".