5442240531251 has 4 divisors (see below), whose sum is σ = 5462322599904. Its totient is φ = 5422158462600.

The previous prime is 5442240531209. The next prime is 5442240531289. The reversal of 5442240531251 is 1521350422445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5442240531251 - 2⁶ = 5442240531187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5442240533251) 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, 10041033920 + ... + 10041034461.

It is an arithmetic number, because the mean of its divisors is an integer number (1365580649976).

Almost surely, 2^{5442240531251} is an apocalyptic number.

5442240531251 is a deficient number, since it is larger than the sum of its proper divisors (20082068653).

5442240531251 is a wasteful number, since it uses less digits than its factorization.

5442240531251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20082068652.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 5442240531251 its reverse (1521350422445), we get a palindrome (6963590953696).

The spelling of 5442240531251 in words is "five trillion, four hundred forty-two billion, two hundred forty million, five hundred thirty-one thousand, two hundred fifty-one".