55340489 has 2 divisors, whose sum is σ = 55340490. Its totient is φ = 55340488.

The previous prime is 55340477. The next prime is 55340501. The reversal of 55340489 is 98404355.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (55340477) and next prime (55340501).

It can be written as a sum of positive squares in only one way, i.e., 55056400 + 284089 = 7420^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 55340489 - 2⁴ = 55340473 is a prime.

It is not a weakly prime, because it can be changed into another prime (55370489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27670244 + 27670245.

It is an arithmetic number, because the mean of its divisors is an integer number (27670245).

Almost surely, 2^55340489 is an apocalyptic number.

It is an amenable number.

55340489 is a deficient number, since it is larger than the sum of its proper divisors (1).

55340489 is an equidigital number, since it uses as much as digits as its factorization.

55340489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 55340489 is about 7439.1188322274. The cubic root of 55340489 is about 381.0783979498.

The spelling of 55340489 in words is "fifty-five million, three hundred forty thousand, four hundred eighty-nine".