490886551 has 2 divisors, whose sum is σ = 490886552. Its totient is φ = 490886550.

The previous prime is 490886507. The next prime is 490886593. The reversal of 490886551 is 155688094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 490886551 - 2¹³ = 490878359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490806551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245443275 + 245443276.

It is an arithmetic number, because the mean of its divisors is an integer number (245443276).

Almost surely, 2^490886551 is an apocalyptic number.

490886551 is a deficient number, since it is larger than the sum of its proper divisors (1).

490886551 is an equidigital number, since it uses as much as digits as its factorization.

490886551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 490886551 is about 22155.9597174214. The cubic root of 490886551 is about 788.8486946973.

The spelling of 490886551 in words is "four hundred ninety million, eight hundred eighty-six thousand, five hundred fifty-one".