5521148777 has 2 divisors, whose sum is σ = 5521148778. Its totient is φ = 5521148776.

The previous prime is 5521148767. The next prime is 5521148783. The reversal of 5521148777 is 7778411255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5401662016 + 119486761 = 73496^2 + 10931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5521148777 is a prime.

It is not a weakly prime, because it can be changed into another prime (5521148767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760574388 + 2760574389.

It is an arithmetic number, because the mean of its divisors is an integer number (2760574389).

Almost surely, 2^5521148777 is an apocalyptic number.

It is an amenable number.

5521148777 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521148777 is an equidigital number, since it uses as much as digits as its factorization.

5521148777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 548800, while the sum is 47.

The square root of 5521148777 is about 74304.4330911689. The cubic root of 5521148777 is about 1767.4337753997.

The spelling of 5521148777 in words is "five billion, five hundred twenty-one million, one hundred forty-eight thousand, seven hundred seventy-seven".