55375933 has 2 divisors, whose sum is σ = 55375934. Its totient is φ = 55375932.

The previous prime is 55375921. The next prime is 55375949. The reversal of 55375933 is 33957355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31775769 + 23600164 = 5637^2 + 4858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55375933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55375963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27687966 + 27687967.

It is an arithmetic number, because the mean of its divisors is an integer number (27687967).

Almost surely, 2^55375933 is an apocalyptic number.

It is an amenable number.

55375933 is a deficient number, since it is larger than the sum of its proper divisors (1).

55375933 is an equidigital number, since it uses as much as digits as its factorization.

55375933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 212625, while the sum is 40.

The square root of 55375933 is about 7441.5007223006. The cubic root of 55375933 is about 381.1597371911.

The spelling of 55375933 in words is "fifty-five million, three hundred seventy-five thousand, nine hundred thirty-three".