5525378549 has 2 divisors, whose sum is σ = 5525378550. Its totient is φ = 5525378548.

The previous prime is 5525378449. The next prime is 5525378557. The reversal of 5525378549 is 9458735255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5370251524 + 155127025 = 73282^2 + 12455^2 .

It is a cyclic number.

It is not a de Polignac number, because 5525378549 - 2⁸ = 5525378293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5525378549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5525378449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2762689274 + 2762689275.

It is an arithmetic number, because the mean of its divisors is an integer number (2762689275).

Almost surely, 2^5525378549 is an apocalyptic number.

It is an amenable number.

5525378549 is a deficient number, since it is larger than the sum of its proper divisors (1).

5525378549 is an equidigital number, since it uses as much as digits as its factorization.

5525378549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560000, while the sum is 53.

The square root of 5525378549 is about 74332.8900891120. The cubic root of 5525378549 is about 1767.8850059871.

The spelling of 5525378549 in words is "five billion, five hundred twenty-five million, three hundred seventy-eight thousand, five hundred forty-nine".