55647733 has 2 divisors, whose sum is σ = 55647734. Its totient is φ = 55647732.

The previous prime is 55647727. The next prime is 55647737. The reversal of 55647733 is 33774655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31618129 + 24029604 = 5623^2 + 4902^2 .

It is a cyclic number.

It is not a de Polignac number, because 55647733 - 2¹³ = 55639541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55647737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27823866 + 27823867.

It is an arithmetic number, because the mean of its divisors is an integer number (27823867).

Almost surely, 2^55647733 is an apocalyptic number.

It is an amenable number.

55647733 is a deficient number, since it is larger than the sum of its proper divisors (1).

55647733 is an equidigital number, since it uses as much as digits as its factorization.

55647733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 40.

The square root of 55647733 is about 7459.7408131918. The cubic root of 55647733 is about 381.7823312436.

The spelling of 55647733 in words is "fifty-five million, six hundred forty-seven thousand, seven hundred thirty-three".