55756249 has 2 divisors, whose sum is σ = 55756250. Its totient is φ = 55756248.

The previous prime is 55756237. The next prime is 55756271. The reversal of 55756249 is 94265755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29899024 + 25857225 = 5468^2 + 5085^2 .

It is a cyclic number.

It is not a de Polignac number, because 55756249 - 2¹⁷ = 55625177 is a prime.

It is not a weakly prime, because it can be changed into another prime (55756219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27878124 + 27878125.

It is an arithmetic number, because the mean of its divisors is an integer number (27878125).

Almost surely, 2^55756249 is an apocalyptic number.

It is an amenable number.

55756249 is a deficient number, since it is larger than the sum of its proper divisors (1).

55756249 is an equidigital number, since it uses as much as digits as its factorization.

55756249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 43.

The square root of 55756249 is about 7467.0107137997. The cubic root of 55756249 is about 382.0303353010.

The spelling of 55756249 in words is "fifty-five million, seven hundred fifty-six thousand, two hundred forty-nine".