2451222520 has 64 divisors (see below), whose sum is σ = 5893430400. Its totient is φ = 914319360.

The previous prime is 2451222491. The next prime is 2451222533. The reversal of 2451222520 is 252221542.

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 15 ways as a sum of consecutive naturals, for example, 57585 + ... + 90655.

It is an arithmetic number, because the mean of its divisors is an integer number (92084850).

Almost surely, 2^2451222520 is an apocalyptic number.

2451222520 is a gapful number since it is divisible by the number (20) 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 2451222520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2946715200).

2451222520 is an abundant number, since it is smaller than the sum of its proper divisors (3442207880).

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

2451222520 is a wasteful number, since it uses less digits than its factorization.

2451222520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33208 (or 33204 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2451222520 is about 49509.8224597907. The cubic root of 2451222520 is about 1348.3239410251.

The spelling of 2451222520 in words is "two billion, four hundred fifty-one million, two hundred twenty-two thousand, five hundred twenty".