725541043717 has 4 divisors (see below), whose sum is σ = 829189764256. Its totient is φ = 621892323180.

The previous prime is 725541043673. The next prime is 725541043727. The reversal of 725541043717 is 717340145527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725541043717 is a prime.

It is a super-2 number, since 2×725541043717² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725541043727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51824360259 + ... + 51824360272.

It is an arithmetic number, because the mean of its divisors is an integer number (207297441064).

Almost surely, 2^725541043717 is an apocalyptic number.

It is an amenable number.

725541043717 is a deficient number, since it is larger than the sum of its proper divisors (103648720539).

725541043717 is a wasteful number, since it uses less digits than its factorization.

725541043717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103648720538.

The product of its (nonzero) digits is 823200, while the sum is 46.

The spelling of 725541043717 in words is "seven hundred twenty-five billion, five hundred forty-one million, forty-three thousand, seven hundred seventeen".