64496555 has 8 divisors (see below), whose sum is σ = 81948672. Its totient is φ = 48562048.

The previous prime is 64496539. The next prime is 64496557. The reversal of 64496555 is 55569446.

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 64496555 - 2⁴ = 64496539 is a prime.

It is a super-3 number, since 3×64496555³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64496557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379307 + ... + 379476.

It is an arithmetic number, because the mean of its divisors is an integer number (10243584).

Almost surely, 2^64496555 is an apocalyptic number.

64496555 is a deficient number, since it is larger than the sum of its proper divisors (17452117).

64496555 is a wasteful number, since it uses less digits than its factorization.

64496555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758805.

The product of its digits is 648000, while the sum is 44.

The square root of 64496555 is about 8030.9747229088. The cubic root of 64496555 is about 401.0318256343.

The spelling of 64496555 in words is "sixty-four million, four hundred ninety-six thousand, five hundred fifty-five".