732521 has 2 divisors, whose sum is σ = 732522. Its totient is φ = 732520.

The previous prime is 732509. The next prime is 732533. The reversal of 732521 is 125237.

It is a balanced prime because it is at equal distance from previous prime (732509) and next prime (732533).

It can be written as a sum of positive squares in only one way, i.e., 714025 + 18496 = 845^2 + 136^2 .

It is a cyclic number.

It is not a de Polignac number, because 732521 - 2¹⁴ = 716137 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 732493 and 732502.

It is not a weakly prime, because it can be changed into another prime (732541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 366260 + 366261.

It is an arithmetic number, because the mean of its divisors is an integer number (366261).

2⁷³²⁵²¹ is an apocalyptic number.

It is an amenable number.

732521 is a deficient number, since it is larger than the sum of its proper divisors (1).

732521 is an equidigital number, since it uses as much as digits as its factorization.

732521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 20.

The square root of 732521 is about 855.8744066743. The cubic root of 732521 is about 90.1446644636.

Adding to 732521 its reverse (125237), we get a palindrome (857758).

The spelling of 732521 in words is "seven hundred thirty-two thousand, five hundred twenty-one".