2662531 has 4 divisors (see below), whose sum is σ = 2670552. Its totient is φ = 2654512.

The previous prime is 2662511. The next prime is 2662547. The reversal of 2662531 is 1352662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2662531 - 2¹⁵ = 2629763 is a prime.

It is a super-2 number, since 2×2662531² = 14178142651922, 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 = 2662496 and 2662505.

It is not an unprimeable number, because it can be changed into a prime (2662501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3490 + ... + 4183.

It is an arithmetic number, because the mean of its divisors is an integer number (667638).

2^2662531 is an apocalyptic number.

2662531 is a deficient number, since it is larger than the sum of its proper divisors (8021).

2662531 is an equidigital number, since it uses as much as digits as its factorization.

2662531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8020.

The product of its digits is 2160, while the sum is 25.

The square root of 2662531 is about 1631.7263863773. The cubic root of 2662531 is about 138.6005300008.

The spelling of 2662531 in words is "two million, six hundred sixty-two thousand, five hundred thirty-one".