2536081 has 4 divisors (see below), whose sum is σ = 2542372. Its totient is φ = 2529792.

The previous prime is 2536067. The next prime is 2536087. The reversal of 2536081 is 1806352.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1401856 + 1134225 = 1184^2 + 1065^2 .

It is a cyclic number.

It is not a de Polignac number, because 2536081 - 2¹⁵ = 2503313 is a prime.

It is a super-2 number, since 2×2536081² = 12863413677122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2536087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496 + ... + 3361.

It is an arithmetic number, because the mean of its divisors is an integer number (635593).

2^2536081 is an apocalyptic number.

It is an amenable number.

2536081 is a deficient number, since it is larger than the sum of its proper divisors (6291).

2536081 is an equidigital number, since it uses as much as digits as its factorization.

2536081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6290.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2536081 is about 1592.5077707817. The cubic root of 2536081 is about 136.3706906923.

The spelling of 2536081 in words is "two million, five hundred thirty-six thousand, eighty-one".