6455550 has 24 divisors (see below), whose sum is σ = 16010136. Its totient is φ = 1721440.

The previous prime is 6455543. The next prime is 6455557. The reversal of 6455550 is 555546.

It is an interprime number because it is at equal distance from previous prime (6455543) and next prime (6455557).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6455557) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 21369 + ... + 21668.

It is an arithmetic number, because the mean of its divisors is an integer number (667089).

Almost surely, 2^6455550 is an apocalyptic number.

6455550 is an abundant number, since it is smaller than the sum of its proper divisors (9554586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6455550 is a wasteful number, since it uses less digits than its factorization.

6455550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43052 (or 43047 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 6455550 is about 2540.7774400762. Note that the first 3 decimals coincide. The cubic root of 6455550 is about 186.1991738555.

The spelling of 6455550 in words is "six million, four hundred fifty-five thousand, five hundred fifty".