7005531 has 16 divisors (see below), whose sum is σ = 10112256. Its totient is φ = 4288416.

The previous prime is 7005529. The next prime is 7005541. The reversal of 7005531 is 1355007.

It is a happy number.

It is not a de Polignac number, because 7005531 - 2¹ = 7005529 is a prime.

It is a super-2 number, since 2×7005531² = 98154929183922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7005498 and 7005507.

It is not an unprimeable number, because it can be changed into a prime (7005511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9916 + ... + 10598.

It is an arithmetic number, because the mean of its divisors is an integer number (632016).

Almost surely, 2^7005531 is an apocalyptic number.

7005531 is a deficient number, since it is larger than the sum of its proper divisors (3106725).

7005531 is a wasteful number, since it uses less digits than its factorization.

7005531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 7005531 is about 2646.7963654199. The cubic root of 7005531 is about 191.3434879768.

The spelling of 7005531 in words is "seven million, five thousand, five hundred thirty-one".