72953537 has 2 divisors, whose sum is σ = 72953538. Its totient is φ = 72953536.

The previous prime is 72953527. The next prime is 72953557. The reversal of 72953537 is 73535927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43349056 + 29604481 = 6584^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 72953537 - 2¹⁴ = 72937153 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72953494 and 72953503.

It is not a weakly prime, because it can be changed into another prime (72953527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36476768 + 36476769.

It is an arithmetic number, because the mean of its divisors is an integer number (36476769).

Almost surely, 2^72953537 is an apocalyptic number.

It is an amenable number.

72953537 is a deficient number, since it is larger than the sum of its proper divisors (1).

72953537 is an equidigital number, since it uses as much as digits as its factorization.

72953537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 198450, while the sum is 41.

The square root of 72953537 is about 8541.2842711152. The cubic root of 72953537 is about 417.8452320355.

The spelling of 72953537 in words is "seventy-two million, nine hundred fifty-three thousand, five hundred thirty-seven".