55738369 has 2 divisors, whose sum is σ = 55738370. Its totient is φ = 55738368.

The previous prime is 55738357. The next prime is 55738387. The reversal of 55738369 is 96383755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44715969 + 11022400 = 6687^2 + 3320^2 .

It is a cyclic number.

It is not a de Polignac number, because 55738369 - 2¹¹ = 55736321 is a prime.

It is a super-2 number, since 2×55738369² = 6213531557560322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55738399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27869184 + 27869185.

It is an arithmetic number, because the mean of its divisors is an integer number (27869185).

It is a Proth number, since it is equal to 1701 ⋅ 2¹⁵ + 1 and 1701 < 2¹⁵.

Almost surely, 2^55738369 is an apocalyptic number.

It is an amenable number.

55738369 is a deficient number, since it is larger than the sum of its proper divisors (1).

55738369 is an equidigital number, since it uses as much as digits as its factorization.

55738369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 46.

The square root of 55738369 is about 7465.8133515378. The cubic root of 55738369 is about 381.9894942425.

The spelling of 55738369 in words is "fifty-five million, seven hundred thirty-eight thousand, three hundred sixty-nine".