488991563 has 2 divisors, whose sum is σ = 488991564. Its totient is φ = 488991562.

The previous prime is 488991539. The next prime is 488991583. The reversal of 488991563 is 365199884.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 488991563 - 2⁶ = 488991499 is a prime.

It is a super-2 number, since 2×488991563² = 478225497370365938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (488991583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244495781 + 244495782.

It is an arithmetic number, because the mean of its divisors is an integer number (244495782).

Almost surely, 2^488991563 is an apocalyptic number.

488991563 is a deficient number, since it is larger than the sum of its proper divisors (1).

488991563 is an equidigital number, since it uses as much as digits as its factorization.

488991563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 53.

The square root of 488991563 is about 22113.1536195089. The cubic root of 488991563 is about 787.8323115184.

The spelling of 488991563 in words is "four hundred eighty-eight million, nine hundred ninety-one thousand, five hundred sixty-three".