55163371 has 2 divisors, whose sum is σ = 55163372. Its totient is φ = 55163370.

The previous prime is 55163369. The next prime is 55163393. The reversal of 55163371 is 17336155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55163371 - 2¹ = 55163369 is a prime.

Together with 55163369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55163321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27581685 + 27581686.

It is an arithmetic number, because the mean of its divisors is an integer number (27581686).

Almost surely, 2^55163371 is an apocalyptic number.

55163371 is a deficient number, since it is larger than the sum of its proper divisors (1).

55163371 is an equidigital number, since it uses as much as digits as its factorization.

55163371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 31.

The square root of 55163371 is about 7427.2047904982. The cubic root of 55163371 is about 380.6714145618.

The spelling of 55163371 in words is "fifty-five million, one hundred sixty-three thousand, three hundred seventy-one".