6225081731 has 6 divisors (see below), whose sum is σ = 6791283732. Its totient is φ = 5658927320.

The previous prime is 6225081703. The next prime is 6225081787. The reversal of 6225081731 is 1371805226.

It is a happy number.

It is not a de Polignac number, because 6225081731 - 2¹⁰ = 6225080707 is a prime.

It is a super-2 number, since 2×6225081731² = 77503285115259912722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6225081691 and 6225081700.

It is not an unprimeable number, because it can be changed into a prime (6225081431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 249785 + ... + 273573.

It is an arithmetic number, because the mean of its divisors is an integer number (1131880622).

Almost surely, 2^6225081731 is an apocalyptic number.

6225081731 is a deficient number, since it is larger than the sum of its proper divisors (566202001).

6225081731 is an frugal number, since it uses more digits than its factorization.

6225081731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47589 (or 23800 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 6225081731 is about 78899.1871377646. The cubic root of 6225081731 is about 1839.5644970999.

Adding to 6225081731 its reverse (1371805226), we get a palindrome (7596886957).

The spelling of 6225081731 in words is "six billion, two hundred twenty-five million, eighty-one thousand, seven hundred thirty-one".