64550853 has 24 divisors (see below), whose sum is σ = 99672768. Its totient is φ = 40113792.

The previous prime is 64550831. The next prime is 64550861. The reversal of 64550853 is 35805546.

64550853 is a `hidden beast` number, since 645 + 5 + 0 + 8 + 5 + 3 = 666.

It is not a de Polignac number, because 64550853 - 2⁶ = 64550789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64550813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14400 + ... + 18342.

It is an arithmetic number, because the mean of its divisors is an integer number (4153032).

Almost surely, 2^64550853 is an apocalyptic number.

It is an amenable number.

64550853 is a deficient number, since it is larger than the sum of its proper divisors (35121915).

64550853 is a wasteful number, since it uses less digits than its factorization.

64550853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073 (or 4070 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 64550853 is about 8034.3545478153. The cubic root of 64550853 is about 401.1443335466.

The spelling of 64550853 in words is "sixty-four million, five hundred fifty thousand, eight hundred fifty-three".