6525381 has 4 divisors (see below), whose sum is σ = 8700512. Its totient is φ = 4350252.

The previous prime is 6525373. The next prime is 6525427. The reversal of 6525381 is 1835256.

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 not a de Polignac number, because 6525381 - 2³ = 6525373 is a prime.

It is a super-2 number, since 2×6525381² = 85161194390322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6525301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087561 + ... + 1087566.

It is an arithmetic number, because the mean of its divisors is an integer number (2175128).

Almost surely, 2^6525381 is an apocalyptic number.

It is an amenable number.

6525381 is a deficient number, since it is larger than the sum of its proper divisors (2175131).

6525381 is a wasteful number, since it uses less digits than its factorization.

6525381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175130.

The product of its digits is 7200, while the sum is 30.

The square root of 6525381 is about 2554.4825307682. The cubic root of 6525381 is about 186.8681522679.

The spelling of 6525381 in words is "six million, five hundred twenty-five thousand, three hundred eighty-one".