649022055 has 32 divisors (see below), whose sum is σ = 1143866880. Its totient is φ = 311614080.

The previous prime is 649022041. The next prime is 649022057. The reversal of 649022055 is 550220946.

It is not a de Polignac number, because 649022055 - 2¹¹ = 649020007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649022057) 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 31 ways as a sum of consecutive naturals, for example, 2100 + ... + 36089.

It is an arithmetic number, because the mean of its divisors is an integer number (35745840).

Almost surely, 2^649022055 is an apocalyptic number.

649022055 is a deficient number, since it is larger than the sum of its proper divisors (494844825).

649022055 is a wasteful number, since it uses less digits than its factorization.

649022055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38311.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 649022055 is about 25475.9112692755. The cubic root of 649022055 is about 865.8044594928.

The spelling of 649022055 in words is "six hundred forty-nine million, twenty-two thousand, fifty-five".