55371923 has 2 divisors, whose sum is σ = 55371924. Its totient is φ = 55371922.

The previous prime is 55371889. The next prime is 55371929. The reversal of 55371923 is 32917355.

It is a happy number.

55371923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55371923 - 2²² = 51177619 is a prime.

It is not a weakly prime, because it can be changed into another prime (55371929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27685961 + 27685962.

It is an arithmetic number, because the mean of its divisors is an integer number (27685962).

Almost surely, 2^55371923 is an apocalyptic number.

55371923 is a deficient number, since it is larger than the sum of its proper divisors (1).

55371923 is an equidigital number, since it uses as much as digits as its factorization.

55371923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28350, while the sum is 35.

The square root of 55371923 is about 7441.2312825231. The cubic root of 55371923 is about 381.1505365187.

The spelling of 55371923 in words is "fifty-five million, three hundred seventy-one thousand, nine hundred twenty-three".