55489327 has 2 divisors, whose sum is σ = 55489328. Its totient is φ = 55489326.

The previous prime is 55489319. The next prime is 55489337. The reversal of 55489327 is 72398455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55489327 - 2³ = 55489319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55489337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27744663 + 27744664.

It is an arithmetic number, because the mean of its divisors is an integer number (27744664).

Almost surely, 2^55489327 is an apocalyptic number.

55489327 is a deficient number, since it is larger than the sum of its proper divisors (1).

55489327 is an equidigital number, since it uses as much as digits as its factorization.

55489327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 55489327 is about 7449.1158535762. The cubic root of 55489327 is about 381.4197283512.

The spelling of 55489327 in words is "fifty-five million, four hundred eighty-nine thousand, three hundred twenty-seven".