64227455 has 4 divisors (see below), whose sum is σ = 77072952. Its totient is φ = 51381960.

The previous prime is 64227419. The next prime is 64227481. The reversal of 64227455 is 55472246.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 64227455 - 2¹⁰ = 64226431 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 3 ways as a sum of consecutive naturals, for example, 6422741 + ... + 6422750.

It is an arithmetic number, because the mean of its divisors is an integer number (19268238).

Almost surely, 2^64227455 is an apocalyptic number.

64227455 is a deficient number, since it is larger than the sum of its proper divisors (12845497).

64227455 is a wasteful number, since it uses less digits than its factorization.

64227455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12845496.

The product of its digits is 67200, while the sum is 35.

The square root of 64227455 is about 8014.2033290902. The cubic root of 64227455 is about 400.4733043200.

The spelling of 64227455 in words is "sixty-four million, two hundred twenty-seven thousand, four hundred fifty-five".