4251563220 has 48 divisors (see below), whose sum is σ = 11925321408. Its totient is φ = 1131755520.

The previous prime is 4251563219. The next prime is 4251563221. The reversal of 4251563220 is 223651524.

It is an interprime number because it is at equal distance from previous prime (4251563219) and next prime (4251563221).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4251563221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27789 + ... + 96308.

It is an arithmetic number, because the mean of its divisors is an integer number (248444196).

Almost surely, 2^4251563220 is an apocalyptic number.

It is an amenable number.

4251563220 is an abundant number, since it is smaller than the sum of its proper divisors (7673758188).

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

4251563220 is a wasteful number, since it uses less digits than its factorization.

4251563220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124680 (or 124678 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 4251563220 is about 65204.0122998577. The cubic root of 4251563220 is about 1620.0044733911.

The spelling of 4251563220 in words is "four billion, two hundred fifty-one million, five hundred sixty-three thousand, two hundred twenty".