2661253 has 4 divisors (see below), whose sum is σ = 3041440. Its totient is φ = 2281068.

The previous prime is 2661251. The next prime is 2661271. The reversal of 2661253 is 3521662.

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 a cyclic number.

It is not a de Polignac number, because 2661253 - 2¹ = 2661251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661251) 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, 190083 + ... + 190096.

It is an arithmetic number, because the mean of its divisors is an integer number (760360).

2^2661253 is an apocalyptic number.

It is an amenable number.

2661253 is a deficient number, since it is larger than the sum of its proper divisors (380187).

2661253 is an equidigital number, since it uses as much as digits as its factorization.

2661253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380186.

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

The square root of 2661253 is about 1631.3347296003. The cubic root of 2661253 is about 138.5783506252.

The spelling of 2661253 in words is "two million, six hundred sixty-one thousand, two hundred fifty-three".