6525316381 has 8 divisors (see below), whose sum is σ = 6676266240. Its totient is φ = 6375397392.

The previous prime is 6525316379. The next prime is 6525316429. The reversal of 6525316381 is 1836135256.

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 6525316381 - 2¹ = 6525316379 is a prime.

It is a super-2 number, since 2×6525316381² = 85159507744293874322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6525316331) 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, 244905 + ... + 270238.

It is an arithmetic number, because the mean of its divisors is an integer number (834533280).

Almost surely, 2^6525316381 is an apocalyptic number.

It is an amenable number.

6525316381 is a deficient number, since it is larger than the sum of its proper divisors (150949859).

6525316381 is a wasteful number, since it uses less digits than its factorization.

6525316381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515435.

The product of its digits is 129600, while the sum is 40.

The square root of 6525316381 is about 80779.4304325055. The cubic root of 6525316381 is about 1868.6753543171.

The spelling of 6525316381 in words is "six billion, five hundred twenty-five million, three hundred sixteen thousand, three hundred eighty-one".