59128661 has 2 divisors, whose sum is σ = 59128662. Its totient is φ = 59128660.

The previous prime is 59128609. The next prime is 59128681. The reversal of 59128661 is 16682195.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58140625 + 988036 = 7625^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 59128661 - 2²² = 54934357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (59128681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29564330 + 29564331.

It is an arithmetic number, because the mean of its divisors is an integer number (29564331).

Almost surely, 2^59128661 is an apocalyptic number.

It is an amenable number.

59128661 is a deficient number, since it is larger than the sum of its proper divisors (1).

59128661 is an equidigital number, since it uses as much as digits as its factorization.

59128661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 59128661 is about 7689.5163046839. The cubic root of 59128661 is about 389.5824173872.

The spelling of 59128661 in words is "fifty-nine million, one hundred twenty-eight thousand, six hundred sixty-one".