6222251520 has 400 divisors, whose sum is σ = 22916689488. Its totient is φ = 1612431360.

The previous prime is 6222251491. The next prime is 6222251573. The reversal of 6222251520 is 251522226.

6222251520 is a `hidden beast` number, since 622 + 2 + 2 + 5 + 15 + 20 = 666.

It is a super-3 number, since 3×6222251520³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7671915 + ... + 7672725.

Almost surely, 2^6222251520 is an apocalyptic number.

6222251520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6222251520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11458344744).

6222251520 is an abundant number, since it is smaller than the sum of its proper divisors (16694437968).

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

6222251520 is an equidigital number, since it uses as much as digits as its factorization.

6222251520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 858 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 6222251520 is about 78881.2494830045. The cubic root of 6222251520 is about 1839.2856710477.

Adding to 6222251520 its reverse (251522226), we get a palindrome (6473773746).

The spelling of 6222251520 in words is "six billion, two hundred twenty-two million, two hundred fifty-one thousand, five hundred twenty".