64272655 has 8 divisors (see below), whose sum is σ = 77303952. Its totient is φ = 51300288.

The previous prime is 64272647. The next prime is 64272683. The reversal of 64272655 is 55627246.

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 64272655 - 2³ = 64272647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12294 + ... + 16723.

It is an arithmetic number, because the mean of its divisors is an integer number (9662994).

Almost surely, 2^64272655 is an apocalyptic number.

64272655 is a deficient number, since it is larger than the sum of its proper divisors (13031297).

64272655 is a wasteful number, since it uses less digits than its factorization.

64272655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29465.

The product of its digits is 100800, while the sum is 37.

The square root of 64272655 is about 8017.0228264612. The cubic root of 64272655 is about 400.5672265050.

The spelling of 64272655 in words is "sixty-four million, two hundred seventy-two thousand, six hundred fifty-five".