59921 has 2 divisors, whose sum is σ = 59922. Its totient is φ = 59920.

The previous prime is 59887. The next prime is 59929. The reversal of 59921 is 12995.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55696 + 4225 = 236^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 59921 - 2¹⁰ = 58897 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 59921.

It is not a weakly prime, because it can be changed into another prime (59929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29960 + 29961.

It is an arithmetic number, because the mean of its divisors is an integer number (29961).

2⁵⁹⁹²¹ is an apocalyptic number.

It is an amenable number.

59921 is a deficient number, since it is larger than the sum of its proper divisors (1).

59921 is an equidigital number, since it uses as much as digits as its factorization.

59921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 26.

The square root of 59921 is about 244.7876630878. The cubic root of 59921 is about 39.1314869461.

Subtracting from 59921 its sum of digits (26), we obtain a palindrome (59895).

The spelling of 59921 in words is "fifty-nine thousand, nine hundred twenty-one".