55769801 has 2 divisors, whose sum is σ = 55769802. Its totient is φ = 55769800.

The previous prime is 55769773. The next prime is 55769821. The reversal of 55769801 is 10896755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46308025 + 9461776 = 6805^2 + 3076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55769801 is a prime.

It is a super-2 number, since 2×55769801² = 6220541407159202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55769821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27884900 + 27884901.

It is an arithmetic number, because the mean of its divisors is an integer number (27884901).

Almost surely, 2^55769801 is an apocalyptic number.

It is an amenable number.

55769801 is a deficient number, since it is larger than the sum of its proper divisors (1).

55769801 is an equidigital number, since it uses as much as digits as its factorization.

55769801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 55769801 is about 7467.9181168516. The cubic root of 55769801 is about 382.0612846313.

The spelling of 55769801 in words is "fifty-five million, seven hundred sixty-nine thousand, eight hundred one".