81250696 has 32 divisors (see below), whose sum is σ = 157464000. Its totient is φ = 39282880.

The previous prime is 81250657. The next prime is 81250703. The reversal of 81250696 is 69605218.

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 7 ways as a sum of consecutive naturals, for example, 28755 + ... + 31453.

It is an arithmetic number, because the mean of its divisors is an integer number (4920750).

Almost surely, 2^81250696 is an apocalyptic number.

It is an amenable number.

81250696 is a deficient number, since it is larger than the sum of its proper divisors (76213304).

81250696 is a wasteful number, since it uses less digits than its factorization.

81250696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2825 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 81250696 is about 9013.9167957110. The cubic root of 81250696 is about 433.1207893898.

The spelling of 81250696 in words is "eighty-one million, two hundred fifty thousand, six hundred ninety-six".