81925096 has 32 divisors (see below), whose sum is σ = 167925600. Its totient is φ = 37160640.

The previous prime is 81925073. The next prime is 81925097. The reversal of 81925096 is 69052918.

It is not an unprimeable number, because it can be changed into a prime (81925097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72391 + ... + 73513.

It is an arithmetic number, because the mean of its divisors is an integer number (5247675).

Almost surely, 2^81925096 is an apocalyptic number.

It is an amenable number.

81925096 is an abundant number, since it is smaller than the sum of its proper divisors (86000504).

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

81925096 is a wasteful number, since it uses less digits than its factorization.

81925096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 81925096 is about 9051.2483116971. The cubic root of 81925096 is about 434.3158241144.

The spelling of 81925096 in words is "eighty-one million, nine hundred twenty-five thousand, ninety-six".