55303693 has 2 divisors, whose sum is σ = 55303694. Its totient is φ = 55303692.

The previous prime is 55303691. The next prime is 55303723. The reversal of 55303693 is 39630355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54789604 + 514089 = 7402^2 + 717^2 .

It is a cyclic number.

It is not a de Polignac number, because 55303693 - 2¹ = 55303691 is a prime.

Together with 55303691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55303691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27651846 + 27651847.

It is an arithmetic number, because the mean of its divisors is an integer number (27651847).

Almost surely, 2^55303693 is an apocalyptic number.

It is an amenable number.

55303693 is a deficient number, since it is larger than the sum of its proper divisors (1).

55303693 is an equidigital number, since it uses as much as digits as its factorization.

55303693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 34.

The square root of 55303693 is about 7436.6452786186. The cubic root of 55303693 is about 380.9939192982.

The spelling of 55303693 in words is "fifty-five million, three hundred three thousand, six hundred ninety-three".