64525633 has 2 divisors, whose sum is σ = 64525634. Its totient is φ = 64525632.

The previous prime is 64525619. The next prime is 64525639. The reversal of 64525633 is 33652546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60964864 + 3560769 = 7808^2 + 1887^2 .

It is a cyclic number.

It is not a de Polignac number, because 64525633 - 2²¹ = 62428481 is a prime.

It is not a weakly prime, because it can be changed into another prime (64525639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32262816 + 32262817.

It is an arithmetic number, because the mean of its divisors is an integer number (32262817).

Almost surely, 2^64525633 is an apocalyptic number.

It is an amenable number.

64525633 is a deficient number, since it is larger than the sum of its proper divisors (1).

64525633 is an equidigital number, since it uses as much as digits as its factorization.

64525633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 34.

The square root of 64525633 is about 8032.7848844594. The cubic root of 64525633 is about 401.0920844156.

The spelling of 64525633 in words is "sixty-four million, five hundred twenty-five thousand, six hundred thirty-three".