55214723 has 2 divisors, whose sum is σ = 55214724. Its totient is φ = 55214722.

The previous prime is 55214683. The next prime is 55214771. The reversal of 55214723 is 32741255.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55214723 - 2¹⁰ = 55213699 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55214773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27607361 + 27607362.

It is an arithmetic number, because the mean of its divisors is an integer number (27607362).

Almost surely, 2^55214723 is an apocalyptic number.

55214723 is a deficient number, since it is larger than the sum of its proper divisors (1).

55214723 is an equidigital number, since it uses as much as digits as its factorization.

55214723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 55214723 is about 7430.6610069361. The cubic root of 55214723 is about 380.7895012281.

Adding to 55214723 its reverse (32741255), we get a palindrome (87955978).

The spelling of 55214723 in words is "fifty-five million, two hundred fourteen thousand, seven hundred twenty-three".