55632769 has 2 divisors, whose sum is σ = 55632770. Its totient is φ = 55632768.

The previous prime is 55632763. The next prime is 55632781. The reversal of 55632769 is 96723655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30382144 + 25250625 = 5512^2 + 5025^2 .

It is a cyclic number.

It is not a de Polignac number, because 55632769 - 2⁵ = 55632737 is a prime.

It is a super-2 number, since 2×55632769² = 6190009973214722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55632763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27816384 + 27816385.

It is an arithmetic number, because the mean of its divisors is an integer number (27816385).

Almost surely, 2^55632769 is an apocalyptic number.

It is an amenable number.

55632769 is a deficient number, since it is larger than the sum of its proper divisors (1).

55632769 is an equidigital number, since it uses as much as digits as its factorization.

55632769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 43.

The square root of 55632769 is about 7458.7377618468. The cubic root of 55632769 is about 381.7481070105.

The spelling of 55632769 in words is "fifty-five million, six hundred thirty-two thousand, seven hundred sixty-nine".