5097561408 has 84 divisors (see below), whose sum is σ = 14704565460. Its totient is φ = 1688334336.

The previous prime is 5097561397. The next prime is 5097561409. The reversal of 5097561408 is 8041657905.

It can be written as a sum of positive squares in 2 ways, for example, as 826677504 + 4270883904 = 28752^2 + 65352^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5097561409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62248 + ... + 118616.

Almost surely, 2^5097561408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5097561408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7352282730).

5097561408 is an abundant number, since it is smaller than the sum of its proper divisors (9607004052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5097561408 is a wasteful number, since it uses less digits than its factorization.

5097561408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56544 (or 56531 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 5097561408 is about 71397.2086849339. The cubic root of 5097561408 is about 1721.0262273193.

The spelling of 5097561408 in words is "five billion, ninety-seven million, five hundred sixty-one thousand, four hundred eight".