1550466461 has 2 divisors, whose sum is σ = 1550466462. Its totient is φ = 1550466460.

The previous prime is 1550466451. The next prime is 1550466479. The reversal of 1550466461 is 1646640551.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1522482361 + 27984100 = 39019^2 + 5290^2 .

It is an emirp because it is prime and its reverse (1646640551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1550466461 - 2¹⁰ = 1550465437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550466451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775233230 + 775233231.

It is an arithmetic number, because the mean of its divisors is an integer number (775233231).

Almost surely, 2^1550466461 is an apocalyptic number.

It is an amenable number.

1550466461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550466461 is an equidigital number, since it uses as much as digits as its factorization.

1550466461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1550466461 is about 39375.9629850496. The cubic root of 1550466461 is about 1157.4106086863.

The spelling of 1550466461 in words is "one billion, five hundred fifty million, four hundred sixty-six thousand, four hundred sixty-one".