1550208493 has 2 divisors, whose sum is σ = 1550208494. Its totient is φ = 1550208492.

The previous prime is 1550208419. The next prime is 1550208503. The reversal of 1550208493 is 3948020551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1548186409 + 2022084 = 39347^2 + 1422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1550208493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550208593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775104246 + 775104247.

It is an arithmetic number, because the mean of its divisors is an integer number (775104247).

Almost surely, 2^1550208493 is an apocalyptic number.

It is an amenable number.

1550208493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550208493 is an equidigital number, since it uses as much as digits as its factorization.

1550208493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1550208493 is about 39372.6871447708. The cubic root of 1550208493 is about 1157.3464147877.

The spelling of 1550208493 in words is "one billion, five hundred fifty million, two hundred eight thousand, four hundred ninety-three".