64506227 has 2 divisors, whose sum is σ = 64506228. Its totient is φ = 64506226.

The previous prime is 64506217. The next prime is 64506251. The reversal of 64506227 is 72260546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64506227 - 2⁸ = 64505971 is a prime.

It is a super-2 number, since 2×64506227² = 8322106643551058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64506193 and 64506202.

It is not a weakly prime, because it can be changed into another prime (64506217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32253113 + 32253114.

It is an arithmetic number, because the mean of its divisors is an integer number (32253114).

Almost surely, 2^64506227 is an apocalyptic number.

64506227 is a deficient number, since it is larger than the sum of its proper divisors (1).

64506227 is an equidigital number, since it uses as much as digits as its factorization.

64506227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 64506227 is about 8031.5768688347. The cubic root of 64506227 is about 401.0518710768.

The spelling of 64506227 in words is "sixty-four million, five hundred six thousand, two hundred twenty-seven".