61520593 has 2 divisors, whose sum is σ = 61520594. Its totient is φ = 61520592.

The previous prime is 61520579. The next prime is 61520597. The reversal of 61520593 is 39502516.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54508689 + 7011904 = 7383^2 + 2648^2 .

It is a cyclic number.

It is not a de Polignac number, because 61520593 - 2¹⁷ = 61389521 is a prime.

It is not a weakly prime, because it can be changed into another prime (61520597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30760296 + 30760297.

It is an arithmetic number, because the mean of its divisors is an integer number (30760297).

Almost surely, 2^61520593 is an apocalyptic number.

It is an amenable number.

61520593 is a deficient number, since it is larger than the sum of its proper divisors (1).

61520593 is an equidigital number, since it uses as much as digits as its factorization.

61520593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 61520593 is about 7843.5064225128. The cubic root of 61520593 is about 394.7663907352.

The spelling of 61520593 in words is "sixty-one million, five hundred twenty thousand, five hundred ninety-three".