655531326 has 32 divisors (see below), whose sum is σ = 1520075520. Its totient is φ = 209009592.

The previous prime is 655531321. The next prime is 655531333. The reversal of 655531326 is 623135556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655531321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262660 + ... + 265143.

It is an arithmetic number, because the mean of its divisors is an integer number (47502360).

Almost surely, 2^655531326 is an apocalyptic number.

655531326 is an abundant number, since it is smaller than the sum of its proper divisors (864544194).

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

655531326 is a wasteful number, since it uses less digits than its factorization.

655531326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527837 (or 527831 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 655531326 is about 25603.3459922722. The cubic root of 655531326 is about 868.6893224981.

The spelling of 655531326 in words is "six hundred fifty-five million, five hundred thirty-one thousand, three hundred twenty-six".