2544531 has 16 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 1521920.

The previous prime is 2544523. The next prime is 2544539. The reversal of 2544531 is 1354452.

It is an interprime number because it is at equal distance from previous prime (2544523) and next prime (2544539).

It is a cyclic number.

It is not a de Polignac number, because 2544531 - 2³ = 2544523 is a prime.

It is a super-2 number, since 2×2544531² = 12949276019922, which contains 22 as substring.

2544531 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2544539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2275 + ... + 3203.

It is an arithmetic number, because the mean of its divisors is an integer number (234360).

2^2544531 is an apocalyptic number.

2544531 is a deficient number, since it is larger than the sum of its proper divisors (1205229).

2544531 is a wasteful number, since it uses less digits than its factorization.

2544531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026.

The product of its digits is 2400, while the sum is 24.

The square root of 2544531 is about 1595.1586128031. The cubic root of 2544531 is about 136.5219811909.

Adding to 2544531 its reverse (1354452), we get a palindrome (3898983).

The spelling of 2544531 in words is "two million, five hundred forty-four thousand, five hundred thirty-one".