64553 has 2 divisors, whose sum is σ = 64554. Its totient is φ = 64552.

The previous prime is 64513. The next prime is 64567. The reversal of 64553 is 35546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34969 + 29584 = 187^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 64553 - 2⁶ = 64489 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is not a weakly prime, because it can be changed into another prime (64513) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32276 + 32277.

It is an arithmetic number, because the mean of its divisors is an integer number (32277).

2⁶⁴⁵⁵³ is an apocalyptic number.

It is an amenable number.

64553 is a deficient number, since it is larger than the sum of its proper divisors (1).

64553 is an equidigital number, since it uses as much as digits as its factorization.

64553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 23.

The square root of 64553 is about 254.0728242060. The cubic root of 64553 is about 40.1148780931.

The spelling of 64553 in words is "sixty-four thousand, five hundred fifty-three".