60537721 has 2 divisors, whose sum is σ = 60537722. Its totient is φ = 60537720.

The previous prime is 60537709. The next prime is 60537733. The reversal of 60537721 is 12773506.

It is a balanced prime because it is at equal distance from previous prime (60537709) and next prime (60537733).

It can be written as a sum of positive squares in only one way, i.e., 36772096 + 23765625 = 6064^2 + 4875^2 .

It is a cyclic number.

It is not a de Polignac number, because 60537721 - 2⁹ = 60537209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60537821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30268860 + 30268861.

It is an arithmetic number, because the mean of its divisors is an integer number (30268861).

Almost surely, 2^60537721 is an apocalyptic number.

It is an amenable number.

60537721 is a deficient number, since it is larger than the sum of its proper divisors (1).

60537721 is an equidigital number, since it uses as much as digits as its factorization.

60537721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 60537721 is about 7780.5990129295. The cubic root of 60537721 is about 392.6527913397.

The spelling of 60537721 in words is "sixty million, five hundred thirty-seven thousand, seven hundred twenty-one".