1650052020 has 48 divisors (see below), whose sum is σ = 4621962240. Its totient is φ = 439840896.

The previous prime is 1650052009. The next prime is 1650052051. The reversal of 1650052020 is 202500561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242221 + ... + 248939.

It is an arithmetic number, because the mean of its divisors is an integer number (96290880).

Almost surely, 2^1650052020 is an apocalyptic number.

1650052020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1650052020 is an abundant number, since it is smaller than the sum of its proper divisors (2971910220).

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

1650052020 is a wasteful number, since it uses less digits than its factorization.

1650052020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10824 (or 10822 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1650052020 is about 40620.8323400691. The cubic root of 1650052020 is about 1181.6781685698.

Adding to 1650052020 its reverse (202500561), we get a palindrome (1852552581).

The spelling of 1650052020 in words is "one billion, six hundred fifty million, fifty-two thousand, twenty".