55256549 has 2 divisors, whose sum is σ = 55256550. Its totient is φ = 55256548.

The previous prime is 55256543. The next prime is 55256573. The reversal of 55256549 is 94565255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33930625 + 21325924 = 5825^2 + 4618^2 .

It is a cyclic number.

It is not a de Polignac number, because 55256549 - 2⁴ = 55256533 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55256543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27628274 + 27628275.

It is an arithmetic number, because the mean of its divisors is an integer number (27628275).

Almost surely, 2^55256549 is an apocalyptic number.

It is an amenable number.

55256549 is a deficient number, since it is larger than the sum of its proper divisors (1).

55256549 is an equidigital number, since it uses as much as digits as its factorization.

55256549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270000, while the sum is 41.

The square root of 55256549 is about 7433.4748940183. The cubic root of 55256549 is about 380.8856282565.

The spelling of 55256549 in words is "fifty-five million, two hundred fifty-six thousand, five hundred forty-nine".