55641371 has 2 divisors, whose sum is σ = 55641372. Its totient is φ = 55641370.

The previous prime is 55641349. The next prime is 55641379. The reversal of 55641371 is 17314655.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55641371 is a prime.

It is not a weakly prime, because it can be changed into another prime (55641379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27820685 + 27820686.

It is an arithmetic number, because the mean of its divisors is an integer number (27820686).

Almost surely, 2^55641371 is an apocalyptic number.

55641371 is a deficient number, since it is larger than the sum of its proper divisors (1).

55641371 is an equidigital number, since it uses as much as digits as its factorization.

55641371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 55641371 is about 7459.3143786812. The cubic root of 55641371 is about 381.7677814340.

The spelling of 55641371 in words is "fifty-five million, six hundred forty-one thousand, three hundred seventy-one".