59721061 has 2 divisors, whose sum is σ = 59721062. Its totient is φ = 59721060.

The previous prime is 59721059. The next prime is 59721091. The reversal of 59721061 is 16012795.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53012961 + 6708100 = 7281^2 + 2590^2 .

It is a cyclic number.

It is not a de Polignac number, because 59721061 - 2¹ = 59721059 is a prime.

Together with 59721059, 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 (59721001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29860530 + 29860531.

It is an arithmetic number, because the mean of its divisors is an integer number (29860531).

Almost surely, 2^59721061 is an apocalyptic number.

It is an amenable number.

59721061 is a deficient number, since it is larger than the sum of its proper divisors (1).

59721061 is an equidigital number, since it uses as much as digits as its factorization.

59721061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 59721061 is about 7727.9402818604. The cubic root of 59721061 is about 390.8791497316.

The spelling of 59721061 in words is "fifty-nine million, seven hundred twenty-one thousand, sixty-one".