655151952 has 160 divisors (see below), whose sum is σ = 2126252800. Its totient is φ = 172730880.

The previous prime is 655151911. The next prime is 655151969. The reversal of 655151952 is 259151556.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 655151952.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212502 + ... + 215562.

It is an arithmetic number, because the mean of its divisors is an integer number (13289080).

Almost surely, 2^655151952 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 655151952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063126400).

655151952 is an abundant number, since it is smaller than the sum of its proper divisors (1471100848).

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

655151952 is a wasteful number, since it uses less digits than its factorization.

655151952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106 (or 3086 counting only the distinct ones).

The product of its digits is 67500, while the sum is 39.

The square root of 655151952 is about 25595.9362399581. The cubic root of 655151952 is about 868.5217120295.

The spelling of 655151952 in words is "six hundred fifty-five million, one hundred fifty-one thousand, nine hundred fifty-two".