61325304613 has 2 divisors, whose sum is σ = 61325304614. Its totient is φ = 61325304612.

The previous prime is 61325304611. The next prime is 61325304653. The reversal of 61325304613 is 31640352316.

61325304613 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., 30706604289 + 30618700324 = 175233^2 + 174982^2 .

It is a cyclic number.

It is not a de Polignac number, because 61325304613 - 2¹ = 61325304611 is a prime.

Together with 61325304611, 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 (61325304611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30662652306 + 30662652307.

It is an arithmetic number, because the mean of its divisors is an integer number (30662652307).

Almost surely, 2^61325304613 is an apocalyptic number.

It is an amenable number.

61325304613 is a deficient number, since it is larger than the sum of its proper divisors (1).

61325304613 is an equidigital number, since it uses as much as digits as its factorization.

61325304613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 61325304613 its reverse (31640352316), we get a palindrome (92965656929).

The spelling of 61325304613 in words is "sixty-one billion, three hundred twenty-five million, three hundred four thousand, six hundred thirteen".