3621140550 has 72 divisors (see below), whose sum is σ = 9746938656. Its totient is φ = 963837120.

The previous prime is 3621140543. The next prime is 3621140591. The reversal of 3621140550 is 550411263.

3621140550 is a `hidden beast` number, since 3 + 62 + 11 + 40 + 550 = 666.

It is a super-2 number, since 2×3621140550² = 26225317765708605000, 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 (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 243427 + ... + 257873.

It is an arithmetic number, because the mean of its divisors is an integer number (135374148).

Almost surely, 2^3621140550 is an apocalyptic number.

3621140550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3621140550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4873469328).

3621140550 is an abundant number, since it is smaller than the sum of its proper divisors (6125798106).

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

3621140550 is a wasteful number, since it uses less digits than its factorization.

3621140550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15022 (or 15014 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 3621140550 is about 60175.9133707167. The cubic root of 3621140550 is about 1535.6130489910.

The spelling of 3621140550 in words is "three billion, six hundred twenty-one million, one hundred forty thousand, five hundred fifty".