61804573 has 2 divisors, whose sum is σ = 61804574. Its totient is φ = 61804572.

The previous prime is 61804553. The next prime is 61804637. The reversal of 61804573 is 37540816.

61804573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60886809 + 917764 = 7803^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 61804573 - 2¹³ = 61796381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61804553) 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, 30902286 + 30902287.

It is an arithmetic number, because the mean of its divisors is an integer number (30902287).

Almost surely, 2^61804573 is an apocalyptic number.

It is an amenable number.

61804573 is a deficient number, since it is larger than the sum of its proper divisors (1).

61804573 is an equidigital number, since it uses as much as digits as its factorization.

61804573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 61804573 is about 7861.5884527238. The cubic root of 61804573 is about 395.3728744139.

The spelling of 61804573 in words is "sixty-one million, eight hundred four thousand, five hundred seventy-three".