1080615551 has 2 divisors, whose sum is σ = 1080615552. Its totient is φ = 1080615550.

The previous prime is 1080615541. The next prime is 1080615619. The reversal of 1080615551 is 1555160801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1080615551 - 2¹⁴ = 1080599167 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1080615511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540307775 + 540307776.

It is an arithmetic number, because the mean of its divisors is an integer number (540307776).

Almost surely, 2^1080615551 is an apocalyptic number.

1080615551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1080615551 is an equidigital number, since it uses as much as digits as its factorization.

1080615551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 32.

The square root of 1080615551 is about 32872.7174264617. The cubic root of 1080615551 is about 1026.1804527270.

The spelling of 1080615551 in words is "one billion, eighty million, six hundred fifteen thousand, five hundred fifty-one".