65675531 has 2 divisors, whose sum is σ = 65675532. Its totient is φ = 65675530.

The previous prime is 65675521. The next prime is 65675549. The reversal of 65675531 is 13557656.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65675531 is a prime.

It is a super-2 number, since 2×65675531² = 8626550744263922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65675521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32837765 + 32837766.

It is an arithmetic number, because the mean of its divisors is an integer number (32837766).

Almost surely, 2^65675531 is an apocalyptic number.

65675531 is a deficient number, since it is larger than the sum of its proper divisors (1).

65675531 is an equidigital number, since it uses as much as digits as its factorization.

65675531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 38.

The square root of 65675531 is about 8104.0441138977. The cubic root of 65675531 is about 403.4606627714.

The spelling of 65675531 in words is "sixty-five million, six hundred seventy-five thousand, five hundred thirty-one".