2027655521 has 2 divisors, whose sum is σ = 2027655522. Its totient is φ = 2027655520.

The previous prime is 2027655479. The next prime is 2027655541. The reversal of 2027655521 is 1255567202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1694227921 + 333427600 = 41161^2 + 18260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2027655521 is a prime.

It is a super-2 number, since 2×2027655521² = 8222773823683562882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2027655541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013827760 + 1013827761.

It is an arithmetic number, because the mean of its divisors is an integer number (1013827761).

Almost surely, 2^2027655521 is an apocalyptic number.

It is an amenable number.

2027655521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2027655521 is an equidigital number, since it uses as much as digits as its factorization.

2027655521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 2027655521 is about 45029.4961219865. The cubic root of 2027655521 is about 1265.7017818589.

The spelling of 2027655521 in words is "two billion, twenty-seven million, six hundred fifty-five thousand, five hundred twenty-one".