59621 has 2 divisors, whose sum is σ = 59622. Its totient is φ = 59620.

The previous prime is 59617. The next prime is 59627. The reversal of 59621 is 12695.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57121 + 2500 = 239^2 + 50^2 .

It is a cyclic number.

It is not a de Polignac number, because 59621 - 2² = 59617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 59621.

It is not a weakly prime, because it can be changed into another prime (59627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29810 + 29811.

It is an arithmetic number, because the mean of its divisors is an integer number (29811).

2⁵⁹⁶²¹ is an apocalyptic number.

It is an amenable number.

59621 is a deficient number, since it is larger than the sum of its proper divisors (1).

59621 is an equidigital number, since it uses as much as digits as its factorization.

59621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 59621 is about 244.1741182026. The cubic root of 59621 is about 39.0660725266.

The spelling of 59621 in words is "fifty-nine thousand, six hundred twenty-one".