55214933 has 2 divisors, whose sum is σ = 55214934. Its totient is φ = 55214932.

The previous prime is 55214921. The next prime is 55214947. The reversal of 55214933 is 33941255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45468049 + 9746884 = 6743^2 + 3122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55214933 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55214933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55214233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27607466 + 27607467.

It is an arithmetic number, because the mean of its divisors is an integer number (27607467).

Almost surely, 2^55214933 is an apocalyptic number.

It is an amenable number.

55214933 is a deficient number, since it is larger than the sum of its proper divisors (1).

55214933 is an equidigital number, since it uses as much as digits as its factorization.

55214933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 32.

The square root of 55214933 is about 7430.6751375632. The cubic root of 55214933 is about 380.7899839839.

The spelling of 55214933 in words is "fifty-five million, two hundred fourteen thousand, nine hundred thirty-three".