2530649 has 4 divisors (see below), whose sum is σ = 2760720. Its totient is φ = 2300580.

The previous prime is 2530597. The next prime is 2530663. The reversal of 2530649 is 9460352.

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 2530649 - 2¹² = 2526553 is a prime.

It is a super-2 number, since 2×2530649² = 12808368722402, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 3 + 0 + 6⁶ + 4² + 9⁴ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2530669) 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, 115019 + ... + 115040.

It is an arithmetic number, because the mean of its divisors is an integer number (690180).

2^2530649 is an apocalyptic number.

It is an amenable number.

2530649 is a deficient number, since it is larger than the sum of its proper divisors (230071).

2530649 is a wasteful number, since it uses less digits than its factorization.

2530649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230070.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2530649 is about 1590.8013703791. The cubic root of 2530649 is about 136.2732575397.

The spelling of 2530649 in words is "two million, five hundred thirty thousand, six hundred forty-nine".