72652537 has 2 divisors, whose sum is σ = 72652538. Its totient is φ = 72652536.

The previous prime is 72652519. The next prime is 72652597. The reversal of 72652537 is 73525627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68873401 + 3779136 = 8299^2 + 1944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72652537 is a prime.

It is a super-2 number, since 2×72652537² = 10556782265072738, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72652496 and 72652505.

It is not a weakly prime, because it can be changed into another prime (72652597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36326268 + 36326269.

It is an arithmetic number, because the mean of its divisors is an integer number (36326269).

Almost surely, 2^72652537 is an apocalyptic number.

It is an amenable number.

72652537 is a deficient number, since it is larger than the sum of its proper divisors (1).

72652537 is an equidigital number, since it uses as much as digits as its factorization.

72652537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 37.

The square root of 72652537 is about 8523.6457575383. The cubic root of 72652537 is about 417.2697754202.

The spelling of 72652537 in words is "seventy-two million, six hundred fifty-two thousand, five hundred thirty-seven".