64552273 has 2 divisors, whose sum is σ = 64552274. Its totient is φ = 64552272.

The previous prime is 64552259. The next prime is 64552297. The reversal of 64552273 is 37225546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62220544 + 2331729 = 7888^2 + 1527^2 .

It is a cyclic number.

It is not a de Polignac number, because 64552273 - 2⁹ = 64551761 is a prime.

It is not a weakly prime, because it can be changed into another prime (64552373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32276136 + 32276137.

It is an arithmetic number, because the mean of its divisors is an integer number (32276137).

Almost surely, 2^64552273 is an apocalyptic number.

It is an amenable number.

64552273 is a deficient number, since it is larger than the sum of its proper divisors (1).

64552273 is an equidigital number, since it uses as much as digits as its factorization.

64552273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 34.

The square root of 64552273 is about 8034.4429178382. The cubic root of 64552273 is about 401.1472750041.

The spelling of 64552273 in words is "sixty-four million, five hundred fifty-two thousand, two hundred seventy-three".