681595552 has 48 divisors (see below), whose sum is σ = 1550005632. Its totient is φ = 291589120.

The previous prime is 681595513. The next prime is 681595591. The reversal of 681595552 is 255595186.

It is an interprime number because it is at equal distance from previous prime (681595513) and next prime (681595591).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50968 + ... + 62935.

It is an arithmetic number, because the mean of its divisors is an integer number (32291784).

Almost surely, 2^681595552 is an apocalyptic number.

It is an amenable number.

681595552 is an abundant number, since it is smaller than the sum of its proper divisors (868410080).

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

681595552 is a wasteful number, since it uses less digits than its factorization.

681595552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113941 (or 113933 counting only the distinct ones).

The product of its digits is 540000, while the sum is 46.

The square root of 681595552 is about 26107.3850088438. The cubic root of 681595552 is about 880.0531786045.

The spelling of 681595552 in words is "six hundred eighty-one million, five hundred ninety-five thousand, five hundred fifty-two".