486815551 has 2 divisors, whose sum is σ = 486815552. Its totient is φ = 486815550.

The previous prime is 486815543. The next prime is 486815557. The reversal of 486815551 is 155518684.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 486815551 - 2³ = 486815543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 486815498 and 486815507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (486815557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243407775 + 243407776.

It is an arithmetic number, because the mean of its divisors is an integer number (243407776).

Almost surely, 2^486815551 is an apocalyptic number.

486815551 is a deficient number, since it is larger than the sum of its proper divisors (1).

486815551 is an equidigital number, since it uses as much as digits as its factorization.

486815551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192000, while the sum is 43.

The square root of 486815551 is about 22063.8970039293. The cubic root of 486815551 is about 786.6619560867.

The spelling of 486815551 in words is "four hundred eighty-six million, eight hundred fifteen thousand, five hundred fifty-one".