55499459 has 2 divisors, whose sum is σ = 55499460. Its totient is φ = 55499458.

The previous prime is 55499453. The next prime is 55499461. The reversal of 55499459 is 95499455.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55499459 is a prime.

Together with 55499461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55499453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27749729 + 27749730.

It is an arithmetic number, because the mean of its divisors is an integer number (27749730).

Almost surely, 2^55499459 is an apocalyptic number.

55499459 is a deficient number, since it is larger than the sum of its proper divisors (1).

55499459 is an equidigital number, since it uses as much as digits as its factorization.

55499459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458000, while the sum is 50.

The square root of 55499459 is about 7449.7959032446. The cubic root of 55499459 is about 381.4429418814.

The spelling of 55499459 in words is "fifty-five million, four hundred ninety-nine thousand, four hundred fifty-nine".