725925081 has 16 divisors (see below), whose sum is σ = 1107886464. Its totient is φ = 414171264.

The previous prime is 725925019. The next prime is 725925091. The reversal of 725925081 is 180529527.

It is not a de Polignac number, because 725925081 - 2¹⁰ = 725924057 is a prime.

It is a super-2 number, since 2×725925081² = 1053934446449713122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (725925091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12756 + ... + 40181.

It is an arithmetic number, because the mean of its divisors is an integer number (69242904).

Almost surely, 2^725925081 is an apocalyptic number.

It is an amenable number.

725925081 is a deficient number, since it is larger than the sum of its proper divisors (381961383).

725925081 is a wasteful number, since it uses less digits than its factorization.

725925081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53600.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 725925081 is about 26942.9968823069. The cubic root of 725925081 is about 898.7328179047.

The spelling of 725925081 in words is "seven hundred twenty-five million, nine hundred twenty-five thousand, eighty-one".