64952081 has 4 divisors (see below), whose sum is σ = 65009664. Its totient is φ = 64894500.

The previous prime is 64952071. The next prime is 64952093. The reversal of 64952081 is 18025946.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64952081 - 2¹⁴ = 64935697 is a prime.

It is a super-2 number, since 2×64952081² = 8437545652461122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64952021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27065 + ... + 29366.

It is an arithmetic number, because the mean of its divisors is an integer number (16252416).

Almost surely, 2^64952081 is an apocalyptic number.

It is an amenable number.

64952081 is a deficient number, since it is larger than the sum of its proper divisors (57583).

64952081 is a wasteful number, since it uses less digits than its factorization.

64952081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57582.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 64952081 is about 8059.2853901571. The cubic root of 64952081 is about 401.9737468726.

The spelling of 64952081 in words is "sixty-four million, nine hundred fifty-two thousand, eighty-one".