73595521 has 2 divisors, whose sum is σ = 73595522. Its totient is φ = 73595520.

The previous prime is 73595513. The next prime is 73595527. The reversal of 73595521 is 12559537.

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., 44823025 + 28772496 = 6695^2 + 5364^2 .

It is a cyclic number.

It is not a de Polignac number, because 73595521 - 2³ = 73595513 is a prime.

It is a super-2 number, since 2×73595521² = 10832601422522882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73595527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36797760 + 36797761.

It is an arithmetic number, because the mean of its divisors is an integer number (36797761).

Almost surely, 2^73595521 is an apocalyptic number.

It is an amenable number.

73595521 is a deficient number, since it is larger than the sum of its proper divisors (1).

73595521 is an equidigital number, since it uses as much as digits as its factorization.

73595521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47250, while the sum is 37.

The square root of 73595521 is about 8578.7831887745. The cubic root of 73595521 is about 419.0673200065.

It can be divided in two parts, 7359 and 5521, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 73595521 in words is "seventy-three million, five hundred ninety-five thousand, five hundred twenty-one".