725765806081 has 8 divisors (see below), whose sum is σ = 760136166720. Its totient is φ = 691630055952.

The previous prime is 725765806057. The next prime is 725765806121. The reversal of 725765806081 is 180608567527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725765806081 - 2¹⁷ = 725765675009 is a prime.

It is a super-2 number, since 2×725765806081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725765906081) 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, 58646295 + ... + 58658668.

It is an arithmetic number, because the mean of its divisors is an integer number (95017020840).

Almost surely, 2^725765806081 is an apocalyptic number.

It is an amenable number.

725765806081 is a deficient number, since it is larger than the sum of its proper divisors (34370360639).

725765806081 is a wasteful number, since it uses less digits than its factorization.

725765806081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117305255.

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 725765806081 in words is "seven hundred twenty-five billion, seven hundred sixty-five million, eight hundred six thousand, eighty-one".