2601953 has 4 divisors (see below), whose sum is σ = 2608320. Its totient is φ = 2595588.

The previous prime is 2601943. The next prime is 2601979. The reversal of 2601953 is 3591062.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3591062 = 2 ⋅1795531.

It is a cyclic number.

It is not a de Polignac number, because 2601953 - 2¹² = 2597857 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2601913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525 + ... + 3402.

It is an arithmetic number, because the mean of its divisors is an integer number (652080).

2^2601953 is an apocalyptic number.

It is an amenable number.

2601953 is a deficient number, since it is larger than the sum of its proper divisors (6367).

2601953 is an equidigital number, since it uses as much as digits as its factorization.

2601953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6366.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2601953 is about 1613.0570355694. The cubic root of 2601953 is about 137.5413076993.

The spelling of 2601953 in words is "two million, six hundred one thousand, nine hundred fifty-three".