61770053 has 2 divisors, whose sum is σ = 61770054. Its totient is φ = 61770052.

The previous prime is 61770013. The next prime is 61770077. The reversal of 61770053 is 35007716.

61770053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48469444 + 13300609 = 6962^2 + 3647^2 .

It is a cyclic number.

It is not a de Polignac number, because 61770053 - 2¹⁸ = 61507909 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 61769998 and 61770025.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61770013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30885026 + 30885027.

It is an arithmetic number, because the mean of its divisors is an integer number (30885027).

Almost surely, 2^61770053 is an apocalyptic number.

It is an amenable number.

61770053 is a deficient number, since it is larger than the sum of its proper divisors (1).

61770053 is an equidigital number, since it uses as much as digits as its factorization.

61770053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 61770053 is about 7859.3926610140. The cubic root of 61770053 is about 395.2992508789.

Adding to 61770053 its reverse (35007716), we get a palindrome (96777769).

The spelling of 61770053 in words is "sixty-one million, seven hundred seventy thousand, fifty-three".