64552501 has 8 divisors (see below), whose sum is σ = 70300440. Its totient is φ = 58916352.

The previous prime is 64552483. The next prime is 64552541. The reversal of 64552501 is 10525546.

It can be written as a sum of positive squares in 4 ways, for example, as 3243601 + 61308900 = 1801^2 + 7830^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64552501 - 2⁷ = 64552373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64552501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64552541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26740 + ... + 29053.

It is an arithmetic number, because the mean of its divisors is an integer number (8787555).

Almost surely, 2^64552501 is an apocalyptic number.

It is an amenable number.

64552501 is a deficient number, since it is larger than the sum of its proper divisors (5747939).

64552501 is a wasteful number, since it uses less digits than its factorization.

64552501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55895.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 64552501 is about 8034.4571067372. The cubic root of 64552501 is about 401.1477472905.

The spelling of 64552501 in words is "sixty-four million, five hundred fifty-two thousand, five hundred one".