53642065 has 8 divisors (see below), whose sum is σ = 64727208. Its totient is φ = 42675840.

The previous prime is 53642053. The next prime is 53642081. The reversal of 53642065 is 56024635.

It can be written as a sum of positive squares in 4 ways, for example, as 1089 + 53640976 = 33^2 + 7324^2 .

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

It is not a de Polignac number, because 53642065 - 2¹¹ = 53640017 is a prime.

It is a super-2 number, since 2×53642065² = 5754942274928450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28732 + ... + 30541.

It is an arithmetic number, because the mean of its divisors is an integer number (8090901).

Almost surely, 2^53642065 is an apocalyptic number.

It is an amenable number.

53642065 is a deficient number, since it is larger than the sum of its proper divisors (11085143).

53642065 is a wasteful number, since it uses less digits than its factorization.

53642065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59459.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 53642065 is about 7324.0743442431. The cubic root of 53642065 is about 377.1393336106.

The spelling of 53642065 in words is "fifty-three million, six hundred forty-two thousand, sixty-five".