1550485087 has 4 divisors (see below), whose sum is σ = 1603950120. Its totient is φ = 1497020056.

The previous prime is 1550485081. The next prime is 1550485117. The reversal of 1550485087 is 7805840551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7805840551 = 97 ⋅80472583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1550485087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550485081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26732473 + ... + 26732530.

It is an arithmetic number, because the mean of its divisors is an integer number (400987530).

Almost surely, 2^1550485087 is an apocalyptic number.

1550485087 is a deficient number, since it is larger than the sum of its proper divisors (53465033).

1550485087 is an equidigital number, since it uses as much as digits as its factorization.

1550485087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53465032.

The product of its (nonzero) digits is 224000, while the sum is 43.

The square root of 1550485087 is about 39376.1994991899. The cubic root of 1550485087 is about 1157.4152433869.

The spelling of 1550485087 in words is "one billion, five hundred fifty million, four hundred eighty-five thousand, eighty-seven".