64555045 has 4 divisors (see below), whose sum is σ = 77466060. Its totient is φ = 51644032.

The previous prime is 64555037. The next prime is 64555061. The reversal of 64555045 is 54055546.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38514436 + 26040609 = 6206^2 + 5103^2 .

It is a cyclic number.

It is not a de Polignac number, because 64555045 - 2³ = 64555037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64555045.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 6455500 + ... + 6455509.

It is an arithmetic number, because the mean of its divisors is an integer number (19366515).

Almost surely, 2^64555045 is an apocalyptic number.

It is an amenable number.

64555045 is a deficient number, since it is larger than the sum of its proper divisors (12911015).

64555045 is a wasteful number, since it uses less digits than its factorization.

64555045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12911014.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 64555045 is about 8034.6154232794. The cubic root of 64555045 is about 401.1530169364.

The spelling of 64555045 in words is "sixty-four million, five hundred fifty-five thousand, forty-five".