8406513551 has 2 divisors, whose sum is σ = 8406513552. Its totient is φ = 8406513550.

The previous prime is 8406513527. The next prime is 8406513571. The reversal of 8406513551 is 1553156048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8406513551 - 2³⁰ = 7332771727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8406513571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4203256775 + 4203256776.

It is an arithmetic number, because the mean of its divisors is an integer number (4203256776).

Almost surely, 2^8406513551 is an apocalyptic number.

8406513551 is a deficient number, since it is larger than the sum of its proper divisors (1).

8406513551 is an equidigital number, since it uses as much as digits as its factorization.

8406513551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 8406513551 is about 91687.0413471828. The cubic root of 8406513551 is about 2033.3180024435.

Adding to 8406513551 its reverse (1553156048), we get a palindrome (9959669599).

The spelling of 8406513551 in words is "eight billion, four hundred six million, five hundred thirteen thousand, five hundred fifty-one".