61037056573 has 2 divisors, whose sum is σ = 61037056574. Its totient is φ = 61037056572.

The previous prime is 61037056571. The next prime is 61037056583. The reversal of 61037056573 is 37565073016.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49830293529 + 11206763044 = 223227^2 + 105862^2 .

It is a cyclic number.

It is not a de Polignac number, because 61037056573 - 2¹ = 61037056571 is a prime.

Together with 61037056571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61037056571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30518528286 + 30518528287.

It is an arithmetic number, because the mean of its divisors is an integer number (30518528287).

Almost surely, 2^61037056573 is an apocalyptic number.

It is an amenable number.

61037056573 is a deficient number, since it is larger than the sum of its proper divisors (1).

61037056573 is an equidigital number, since it uses as much as digits as its factorization.

61037056573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 396900, while the sum is 43.

The spelling of 61037056573 in words is "sixty-one billion, thirty-seven million, fifty-six thousand, five hundred seventy-three".