5725205731 has 4 divisors (see below), whose sum is σ = 6543092272. Its totient is φ = 4907319192.

The previous prime is 5725205729. The next prime is 5725205743. The reversal of 5725205731 is 1375025275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5725205731 - 2¹ = 5725205729 is a prime.

It is a super-2 number, since 2×5725205731² = 65555961324550488722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5725205711) 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, 408943260 + ... + 408943273.

It is an arithmetic number, because the mean of its divisors is an integer number (1635773068).

Almost surely, 2^5725205731 is an apocalyptic number.

5725205731 is a deficient number, since it is larger than the sum of its proper divisors (817886541).

5725205731 is an equidigital number, since it uses as much as digits as its factorization.

5725205731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817886540.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 5725205731 is about 75665.0892486092. The cubic root of 5725205731 is about 1788.9451803702.

The spelling of 5725205731 in words is "five billion, seven hundred twenty-five million, two hundred five thousand, seven hundred thirty-one".