655081544 has 32 divisors (see below), whose sum is σ = 1392384000. Its totient is φ = 286431552.

The previous prime is 655081541. The next prime is 655081577. The reversal of 655081544 is 445180556.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 655081498 and 655081507.

It is not an unprimeable number, because it can be changed into a prime (655081541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 163784 + ... + 167735.

It is an arithmetic number, because the mean of its divisors is an integer number (43512000).

Almost surely, 2^655081544 is an apocalyptic number.

It is an amenable number.

655081544 is an abundant number, since it is smaller than the sum of its proper divisors (737302456).

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

655081544 is a wasteful number, since it uses less digits than its factorization.

655081544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331557 (or 331553 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 655081544 is about 25594.5608284260. The cubic root of 655081544 is about 868.4905980936.

The spelling of 655081544 in words is "six hundred fifty-five million, eighty-one thousand, five hundred forty-four".