655641500 has 48 divisors (see below), whose sum is σ = 1446209856. Its totient is φ = 259640000.

The previous prime is 655641487. The next prime is 655641523. The reversal of 655641500 is 5146556.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44009 + ... + 56991.

It is an arithmetic number, because the mean of its divisors is an integer number (30129372).

Almost surely, 2^655641500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655641500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723104928).

655641500 is an abundant number, since it is smaller than the sum of its proper divisors (790568356).

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

655641500 is a wasteful number, since it uses less digits than its factorization.

655641500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13103 (or 13091 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 655641500 is about 25605.4974566010. The cubic root of 655641500 is about 868.7379861355.

The spelling of 655641500 in words is "six hundred fifty-five million, six hundred forty-one thousand, five hundred".