6221492550 has 576 divisors, whose sum is σ = 22657549824. Its totient is φ = 1231718400.

The previous prime is 6221492513. The next prime is 6221492551. The reversal of 6221492550 is 552941226.

6221492550 is a `hidden beast` number, since 6 + 2 + 2 + 14 + 92 + 550 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221492551) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 18795885 + ... + 18796215.

It is an arithmetic number, because the mean of its divisors is an integer number (39336024).

Almost surely, 2^6221492550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6221492550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11328774912).

6221492550 is an abundant number, since it is smaller than the sum of its proper divisors (16436057274).

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

6221492550 is a wasteful number, since it uses less digits than its factorization.

6221492550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 6221492550 is about 78876.4384971837. The cubic root of 6221492550 is about 1839.2108846458.

The spelling of 6221492550 in words is "six billion, two hundred twenty-one million, four hundred ninety-two thousand, five hundred fifty".