2530761 has 4 divisors (see below), whose sum is σ = 3374352. Its totient is φ = 1687172.

The previous prime is 2530751. The next prime is 2530769. The reversal of 2530761 is 1670352.

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 2530761 - 2¹⁴ = 2514377 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2530769) 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, 421791 + ... + 421796.

It is an arithmetic number, because the mean of its divisors is an integer number (843588).

2^2530761 is an apocalyptic number.

It is an amenable number.

2530761 is a deficient number, since it is larger than the sum of its proper divisors (843591).

2530761 is an equidigital number, since it uses as much as digits as its factorization.

2530761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843590.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 2530761 is about 1590.8365723732. The cubic root of 2530761 is about 136.2752678778.

The spelling of 2530761 in words is "two million, five hundred thirty thousand, seven hundred sixty-one".