65475637 has 2 divisors, whose sum is σ = 65475638. Its totient is φ = 65475636.

The previous prime is 65475623. The next prime is 65475643. The reversal of 65475637 is 73657456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33281361 + 32194276 = 5769^2 + 5674^2 .

It is a cyclic number.

It is not a de Polignac number, because 65475637 - 2¹¹ = 65473589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65475593 and 65475602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65475667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32737818 + 32737819.

It is an arithmetic number, because the mean of its divisors is an integer number (32737819).

Almost surely, 2^65475637 is an apocalyptic number.

It is an amenable number.

65475637 is a deficient number, since it is larger than the sum of its proper divisors (1).

65475637 is an equidigital number, since it uses as much as digits as its factorization.

65475637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 43.

The square root of 65475637 is about 8091.7017369649. The cubic root of 65475637 is about 403.0509143906.

The spelling of 65475637 in words is "sixty-five million, four hundred seventy-five thousand, six hundred thirty-seven".