5521256431 has 8 divisors (see below), whose sum is σ = 5672142000. Its totient is φ = 5371143360.

The previous prime is 5521256407. The next prime is 5521256441. The reversal of 5521256431 is 1346521255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5521256431 is a prime.

It is a super-2 number, since 2×5521256431² = 60968545153717715522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5521256441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178621 + ... + 207238.

It is an arithmetic number, because the mean of its divisors is an integer number (709017750).

Almost surely, 2^5521256431 is an apocalyptic number.

5521256431 is a deficient number, since it is larger than the sum of its proper divisors (150885569).

5521256431 is a wasteful number, since it uses less digits than its factorization.

5521256431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386249.

The product of its digits is 36000, while the sum is 34.

The square root of 5521256431 is about 74305.1574993284. The cubic root of 5521256431 is about 1767.4452627481.

Adding to 5521256431 its reverse (1346521255), we get a palindrome (6867777686).

The spelling of 5521256431 in words is "five billion, five hundred twenty-one million, two hundred fifty-six thousand, four hundred thirty-one".