61756313 has 2 divisors, whose sum is σ = 61756314. Its totient is φ = 61756312.

The previous prime is 61756271. The next prime is 61756351. The reversal of 61756313 is 31365716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57274624 + 4481689 = 7568^2 + 2117^2 .

It is a cyclic number.

It is not a de Polignac number, because 61756313 - 2⁶ = 61756249 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61756313.

It is not a weakly prime, because it can be changed into another prime (61756813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30878156 + 30878157.

It is an arithmetic number, because the mean of its divisors is an integer number (30878157).

Almost surely, 2^61756313 is an apocalyptic number.

It is an amenable number.

61756313 is a deficient number, since it is larger than the sum of its proper divisors (1).

61756313 is an equidigital number, since it uses as much as digits as its factorization.

61756313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 32.

The square root of 61756313 is about 7858.5184990557. The cubic root of 61756313 is about 395.2699388623.

The spelling of 61756313 in words is "sixty-one million, seven hundred fifty-six thousand, three hundred thirteen".