1550020285 has 72 divisors (see below), whose sum is σ = 2218261248. Its totient is φ = 1038312000.

The previous prime is 1550020267. The next prime is 1550020319. The reversal of 1550020285 is 5820200551.

It is not a de Polignac number, because 1550020285 - 2⁵ = 1550020253 is a prime.

It is a super-2 number, since 2×1550020285² = 4805125767822962450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10264960 + ... + 10265110.

It is an arithmetic number, because the mean of its divisors is an integer number (30809184).

Almost surely, 2^1550020285 is an apocalyptic number.

It is an amenable number.

1550020285 is a deficient number, since it is larger than the sum of its proper divisors (668240963).

1550020285 is a wasteful number, since it uses less digits than its factorization.

1550020285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1550020285 is about 39370.2969889738. The cubic root of 1550020285 is about 1157.2995757827.

The spelling of 1550020285 in words is "one billion, five hundred fifty million, twenty thousand, two hundred eighty-five".