255681532 has 6 divisors (see below), whose sum is σ = 447442688. Its totient is φ = 127840764.

The previous prime is 255681523. The next prime is 255681533. The reversal of 255681532 is 235186552.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 255681491 and 255681500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255681533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31960188 + ... + 31960195.

Almost surely, 2^255681532 is an apocalyptic number.

It is an amenable number.

255681532 is a deficient number, since it is larger than the sum of its proper divisors (191761156).

255681532 is a wasteful number, since it uses less digits than its factorization.

255681532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63920387 (or 63920385 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 255681532 is about 15990.0447779235. The cubic root of 255681532 is about 634.6970113003.

The spelling of 255681532 in words is "two hundred fifty-five million, six hundred eighty-one thousand, five hundred thirty-two".