1550982899 has 2 divisors, whose sum is σ = 1550982900. Its totient is φ = 1550982898.

The previous prime is 1550982883. The next prime is 1550982931. The reversal of 1550982899 is 9982890551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1550982899 - 2⁴ = 1550982883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1550982599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775491449 + 775491450.

It is an arithmetic number, because the mean of its divisors is an integer number (775491450).

Almost surely, 2^1550982899 is an apocalyptic number.

1550982899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550982899 is an equidigital number, since it uses as much as digits as its factorization.

1550982899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 56.

The square root of 1550982899 is about 39382.5202215399. The cubic root of 1550982899 is about 1157.5391000107.

The spelling of 1550982899 in words is "one billion, five hundred fifty million, nine hundred eighty-two thousand, eight hundred ninety-nine".