5162578549 has 2 divisors, whose sum is σ = 5162578550. Its totient is φ = 5162578548.

The previous prime is 5162578517. The next prime is 5162578573. The reversal of 5162578549 is 9458752615.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3160463524 + 2002115025 = 56218^2 + 44745^2 .

It is a cyclic number.

It is not a de Polignac number, because 5162578549 - 2⁵ = 5162578517 is a prime.

It is a super-3 number, since 3×5162578549³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5162578496 and 5162578505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5162578249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2581289274 + 2581289275.

It is an arithmetic number, because the mean of its divisors is an integer number (2581289275).

Almost surely, 2^5162578549 is an apocalyptic number.

It is an amenable number.

5162578549 is a deficient number, since it is larger than the sum of its proper divisors (1).

5162578549 is an equidigital number, since it uses as much as digits as its factorization.

5162578549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024000, while the sum is 52.

The square root of 5162578549 is about 71851.0859277715. The cubic root of 5162578549 is about 1728.3123137211.

The spelling of 5162578549 in words is "five billion, one hundred sixty-two million, five hundred seventy-eight thousand, five hundred forty-nine".