6525478893 has 8 divisors (see below), whose sum is σ = 8705514528. Its totient is φ = 4347881264.

The previous prime is 6525478891. The next prime is 6525478903. The reversal of 6525478893 is 3988745256.

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 6525478893 - 2¹ = 6525478891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6525478891) 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, 603246 + ... + 613967.

It is an arithmetic number, because the mean of its divisors is an integer number (1088189316).

Almost surely, 2^6525478893 is an apocalyptic number.

It is an amenable number.

6525478893 is a deficient number, since it is larger than the sum of its proper divisors (2180035635).

6525478893 is a wasteful number, since it uses less digits than its factorization.

6525478893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219003.

The product of its digits is 14515200, while the sum is 57.

The square root of 6525478893 is about 80780.4363258828. The cubic root of 6525478893 is about 1868.6908672124.

The spelling of 6525478893 in words is "six billion, five hundred twenty-five million, four hundred seventy-eight thousand, eight hundred ninety-three".