61606273 has 2 divisors, whose sum is σ = 61606274. Its totient is φ = 61606272.

The previous prime is 61606247. The next prime is 61606277. The reversal of 61606273 is 37260616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40602384 + 21003889 = 6372^2 + 4583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61606273 is a prime.

It is equal to p_3651646 and since 61606273 and 3651646 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (61606277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30803136 + 30803137.

It is an arithmetic number, because the mean of its divisors is an integer number (30803137).

Almost surely, 2^61606273 is an apocalyptic number.

It is an amenable number.

61606273 is a deficient number, since it is larger than the sum of its proper divisors (1).

61606273 is an equidigital number, since it uses as much as digits as its factorization.

61606273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 61606273 is about 7848.9663650700. The cubic root of 61606273 is about 394.9495700186.

Adding to 61606273 its reverse (37260616), we get a palindrome (98866889).

The spelling of 61606273 in words is "sixty-one million, six hundred six thousand, two hundred seventy-three".