1550002050 has 36 divisors (see below), whose sum is σ = 4164340050. Its totient is φ = 413333760.

The previous prime is 1550002043. The next prime is 1550002061. The reversal of 1550002050 is 502000551.

It can be written as a sum of positive squares in 3 ways, for example, as 1207493001 + 342509049 = 34749^2 + 18507^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1721775 + ... + 1722674.

Almost surely, 2^1550002050 is an apocalyptic number.

1550002050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1550002050 is an abundant number, since it is smaller than the sum of its proper divisors (2614338000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1550002050 is a wasteful number, since it uses less digits than its factorization.

1550002050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444467 (or 3444459 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 1550002050 is about 39370.0654050765. The cubic root of 1550002050 is about 1157.2950374678.

The spelling of 1550002050 in words is "one billion, five hundred fifty million, two thousand, fifty".