5611877521 has 2 divisors, whose sum is σ = 5611877522. Its totient is φ = 5611877520.

The previous prime is 5611877483. The next prime is 5611877539. The reversal of 5611877521 is 1257781165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5107246225 + 504631296 = 71465^2 + 22464^2 .

It is a cyclic number.

It is not a de Polignac number, because 5611877521 - 2¹⁵ = 5611844753 is a prime.

It is not a weakly prime, because it can be changed into another prime (5611677521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805938760 + 2805938761.

It is an arithmetic number, because the mean of its divisors is an integer number (2805938761).

Almost surely, 2^5611877521 is an apocalyptic number.

It is an amenable number.

5611877521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5611877521 is an equidigital number, since it uses as much as digits as its factorization.

5611877521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 43.

The square root of 5611877521 is about 74912.4657250047. The cubic root of 5611877521 is about 1777.0626048135.

The spelling of 5611877521 in words is "five billion, six hundred eleven million, eight hundred seventy-seven thousand, five hundred twenty-one".