64503133 has 2 divisors, whose sum is σ = 64503134. Its totient is φ = 64503132.

The previous prime is 64503113. The next prime is 64503137. The reversal of 64503133 is 33130546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53626329 + 10876804 = 7323^2 + 3298^2 .

It is a cyclic number.

It is not a de Polignac number, because 64503133 - 2⁹ = 64502621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64503098 and 64503107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64503137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32251566 + 32251567.

It is an arithmetic number, because the mean of its divisors is an integer number (32251567).

Almost surely, 2^64503133 is an apocalyptic number.

It is an amenable number.

64503133 is a deficient number, since it is larger than the sum of its proper divisors (1).

64503133 is an equidigital number, since it uses as much as digits as its factorization.

64503133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 64503133 is about 8031.3842517962. The cubic root of 64503133 is about 401.0454589086.

Adding to 64503133 its reverse (33130546), we get a palindrome (97633679).

The spelling of 64503133 in words is "sixty-four million, five hundred three thousand, one hundred thirty-three".