55540349 has 2 divisors, whose sum is σ = 55540350. Its totient is φ = 55540348.

The previous prime is 55540327. The next prime is 55540351. The reversal of 55540349 is 94304555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49984900 + 5555449 = 7070^2 + 2357^2 .

It is a cyclic number.

It is not a de Polignac number, because 55540349 - 2¹² = 55536253 is a prime.

Together with 55540351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55540319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27770174 + 27770175.

It is an arithmetic number, because the mean of its divisors is an integer number (27770175).

Almost surely, 2^55540349 is an apocalyptic number.

It is an amenable number.

55540349 is a deficient number, since it is larger than the sum of its proper divisors (1).

55540349 is an equidigital number, since it uses as much as digits as its factorization.

55540349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 55540349 is about 7452.5397684279. The cubic root of 55540349 is about 381.5365966861.

It can be divided in two parts, 555 and 40349, that added together give a palindrome (40904).

The spelling of 55540349 in words is "fifty-five million, five hundred forty thousand, three hundred forty-nine".