1650521052 has 36 divisors (see below), whose sum is σ = 4195474920. Its totient is φ = 547097952.

The previous prime is 1650521027. The next prime is 1650521069. The reversal of 1650521052 is 2501250561.

1650521052 is a `hidden beast` number, since 1 + 650 + 5 + 2 + 1 + 0 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121623 + ... + 134510.

It is an arithmetic number, because the mean of its divisors is an integer number (116540970).

Almost surely, 2^1650521052 is an apocalyptic number.

1650521052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1650521052 is an abundant number, since it is smaller than the sum of its proper divisors (2544953868).

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

1650521052 is a wasteful number, since it uses less digits than its factorization.

1650521052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256322 (or 256317 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1650521052 is about 40626.6052236709. The cubic root of 1650521052 is about 1181.7901230943.

The spelling of 1650521052 in words is "one billion, six hundred fifty million, five hundred twenty-one thousand, fifty-two".