655143552 has 448 divisors, whose sum is σ = 2408097600. Its totient is φ = 173187072.

The previous prime is 655143539. The next prime is 655143563. The reversal of 655143552 is 255341556.

655143552 is a `hidden beast` number, since 65 + 5 + 1 + 43 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 55 ways as a sum of consecutive naturals, for example, 11104099 + ... + 11104157.

Almost surely, 2^655143552 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 655143552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1204048800).

655143552 is an abundant number, since it is smaller than the sum of its proper divisors (1752954048).

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

655143552 is an equidigital number, since it uses as much as digits as its factorization.

655143552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 88 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 655143552 is about 25595.7721508846. The cubic root of 655143552 is about 868.5180001102.

The spelling of 655143552 in words is "six hundred fifty-five million, one hundred forty-three thousand, five hundred fifty-two".