655500450 has 96 divisors (see below), whose sum is σ = 1877826240. Its totient is φ = 149555200.

The previous prime is 655500431. The next prime is 655500523. The reversal of 655500450 is 54005556.

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

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 47 ways as a sum of consecutive naturals, for example, 16366 + ... + 39734.

It is an arithmetic number, because the mean of its divisors is an integer number (19560690).

Almost surely, 2^655500450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655500450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938913120).

655500450 is an abundant number, since it is smaller than the sum of its proper divisors (1222325790).

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

655500450 is a wasteful number, since it uses less digits than its factorization.

655500450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23412 (or 23407 counting only the distinct ones).

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

The square root of 655500450 is about 25602.7430171066. The cubic root of 655500450 is about 868.6756836520.

It can be divided in two parts, 655 and 500450, that added together give a palindrome (501105).

The spelling of 655500450 in words is "six hundred fifty-five million, five hundred thousand, four hundred fifty".