61055249 has 2 divisors, whose sum is σ = 61055250. Its totient is φ = 61055248.

The previous prime is 61055219. The next prime is 61055257. The reversal of 61055249 is 94255016.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59598400 + 1456849 = 7720^2 + 1207^2 .

It is a cyclic number.

It is not a de Polignac number, because 61055249 - 2¹⁶ = 60989713 is a prime.

It is not a weakly prime, because it can be changed into another prime (61055219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30527624 + 30527625.

It is an arithmetic number, because the mean of its divisors is an integer number (30527625).

Almost surely, 2^61055249 is an apocalyptic number.

It is an amenable number.

61055249 is a deficient number, since it is larger than the sum of its proper divisors (1).

61055249 is an equidigital number, since it uses as much as digits as its factorization.

61055249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 61055249 is about 7813.7858301850. The cubic root of 61055249 is about 393.7685280943.

The spelling of 61055249 in words is "sixty-one million, fifty-five thousand, two hundred forty-nine".