490961533 has 2 divisors, whose sum is σ = 490961534. Its totient is φ = 490961532.

The previous prime is 490961509. The next prime is 490961567. The reversal of 490961533 is 335169094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490091044 + 870489 = 22138^2 + 933^2 .

It is a cyclic number.

It is not a de Polignac number, because 490961533 - 2¹³ = 490953341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490961633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245480766 + 245480767.

It is an arithmetic number, because the mean of its divisors is an integer number (245480767).

Almost surely, 2^490961533 is an apocalyptic number.

It is an amenable number.

490961533 is a deficient number, since it is larger than the sum of its proper divisors (1).

490961533 is an equidigital number, since it uses as much as digits as its factorization.

490961533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 490961533 is about 22157.6517934550. The cubic root of 490961533 is about 788.8888577053. Note that the first 4 decimals are identical.

The spelling of 490961533 in words is "four hundred ninety million, nine hundred sixty-one thousand, five hundred thirty-three".