55340357 has 2 divisors, whose sum is σ = 55340358. Its totient is φ = 55340356.

The previous prime is 55340353. The next prime is 55340387. The reversal of 55340357 is 75304355.

55340357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36409156 + 18931201 = 6034^2 + 4351^2 .

It is a cyclic number.

It is not a de Polignac number, because 55340357 - 2² = 55340353 is a prime.

It is a super-2 number, since 2×55340357² = 6125110225774898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55340353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27670178 + 27670179.

It is an arithmetic number, because the mean of its divisors is an integer number (27670179).

Almost surely, 2^55340357 is an apocalyptic number.

It is an amenable number.

55340357 is a deficient number, since it is larger than the sum of its proper divisors (1).

55340357 is an equidigital number, since it uses as much as digits as its factorization.

55340357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 55340357 is about 7439.1099602036. The cubic root of 55340357 is about 381.0780949625.

The spelling of 55340357 in words is "fifty-five million, three hundred forty thousand, three hundred fifty-seven".