2544531242 has 16 divisors (see below), whose sum is σ = 4182458112. Its totient is φ = 1151416320.

The previous prime is 2544531203. The next prime is 2544531263. The reversal of 2544531242 is 2421354452.

It is a junction number, because it is equal to n+sod(n) for n = 2544531199 and 2544531208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254423 + ... + 264234.

It is an arithmetic number, because the mean of its divisors is an integer number (261403632).

Almost surely, 2^2544531242 is an apocalyptic number.

2544531242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2544531242 is a deficient number, since it is larger than the sum of its proper divisors (1637926870).

2544531242 is a wasteful number, since it uses less digits than its factorization.

2544531242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518893.

The product of its digits is 38400, while the sum is 32.

The square root of 2544531242 is about 50443.3468556558. The cubic root of 2544531242 is about 1365.2198551888.

Adding to 2544531242 its reverse (2421354452), we get a palindrome (4965885694).

The spelling of 2544531242 in words is "two billion, five hundred forty-four million, five hundred thirty-one thousand, two hundred forty-two".