1550200019 has 2 divisors, whose sum is σ = 1550200020. Its totient is φ = 1550200018.

The previous prime is 1550199997. The next prime is 1550200031. The reversal of 1550200019 is 9100020551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1550200019 - 2¹² = 1550195923 is a prime.

It is a super-2 number, since 2×1550200019² = 4806240197815200722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1550199967 and 1550200003.

It is not a weakly prime, because it can be changed into another prime (1550200039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775100009 + 775100010.

It is an arithmetic number, because the mean of its divisors is an integer number (775100010).

Almost surely, 2^1550200019 is an apocalyptic number.

1550200019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550200019 is an equidigital number, since it uses as much as digits as its factorization.

1550200019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 1550200019 is about 39372.5795319535. The cubic root of 1550200019 is about 1157.3443059592.

The spelling of 1550200019 in words is "one billion, five hundred fifty million, two hundred thousand, nineteen".