2542530 has 16 divisors (see below), whose sum is σ = 6102144. Its totient is φ = 678000.

The previous prime is 2542513. The next prime is 2542531. The reversal of 2542530 is 352452.

2542530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2542497 and 2542506.

It is not an unprimeable number, because it can be changed into a prime (2542531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42346 + ... + 42405.

It is an arithmetic number, because the mean of its divisors is an integer number (381384).

2^2542530 is an apocalyptic number.

2542530 is an abundant number, since it is smaller than the sum of its proper divisors (3559614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2542530 is a wasteful number, since it uses less digits than its factorization.

2542530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84761.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 2542530 is about 1594.5312790911. The cubic root of 2542530 is about 136.4861851870.

Adding to 2542530 its reverse (352452), we get a palindrome (2894982).

The spelling of 2542530 in words is "two million, five hundred forty-two thousand, five hundred thirty".