55136329 has 2 divisors, whose sum is σ = 55136330. Its totient is φ = 55136328.

The previous prime is 55136303. The next prime is 55136339. The reversal of 55136329 is 92363155.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49730704 + 5405625 = 7052^2 + 2325^2 .

It is a cyclic number.

It is not a de Polignac number, because 55136329 - 2²¹ = 53039177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55136294 and 55136303.

It is not a weakly prime, because it can be changed into another prime (55136339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27568164 + 27568165.

It is an arithmetic number, because the mean of its divisors is an integer number (27568165).

Almost surely, 2^55136329 is an apocalyptic number.

It is an amenable number.

55136329 is a deficient number, since it is larger than the sum of its proper divisors (1).

55136329 is an equidigital number, since it uses as much as digits as its factorization.

55136329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 34.

The square root of 55136329 is about 7425.3840978094. The cubic root of 55136329 is about 380.6092005794.

The spelling of 55136329 in words is "fifty-five million, one hundred thirty-six thousand, three hundred twenty-nine".