210552481 has 2 divisors, whose sum is σ = 210552482. Its totient is φ = 210552480.

The previous prime is 210552473. The next prime is 210552521. The reversal of 210552481 is 184255012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135140625 + 75411856 = 11625^2 + 8684^2 .

It is a cyclic number.

It is not a de Polignac number, because 210552481 - 2³ = 210552473 is a prime.

It is a super-2 number, since 2×210552481² = 88664694510510722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (210552421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105276240 + 105276241.

It is an arithmetic number, because the mean of its divisors is an integer number (105276241).

Almost surely, 2^210552481 is an apocalyptic number.

It is an amenable number.

210552481 is a deficient number, since it is larger than the sum of its proper divisors (1).

210552481 is an equidigital number, since it uses as much as digits as its factorization.

210552481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 210552481 is about 14510.4266305302. The cubic root of 210552481 is about 594.9129934213.

The spelling of 210552481 in words is "two hundred ten million, five hundred fifty-two thousand, four hundred eighty-one".