12542550241 has 16 divisors (see below), whose sum is σ = 14307224400. Its totient is φ = 10892648448.

The previous prime is 12542550239. The next prime is 12542550253. The reversal of 12542550241 is 14205524521.

It can be written as a sum of positive squares in 8 ways, for example, as 123676641 + 12418873600 = 11121^2 + 111440^2 .

It is a cyclic number.

It is not a de Polignac number, because 12542550241 - 2¹ = 12542550239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12542550211) 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, 691395 + ... + 709303.

It is an arithmetic number, because the mean of its divisors is an integer number (894201525).

Almost surely, 2^12542550241 is an apocalyptic number.

It is an amenable number.

12542550241 is a deficient number, since it is larger than the sum of its proper divisors (1764674159).

12542550241 is a wasteful number, since it uses less digits than its factorization.

12542550241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21108.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 12542550241 in words is "twelve billion, five hundred forty-two million, five hundred fifty thousand, two hundred forty-one".