2251551524520 has 128 divisors (see below), whose sum is σ = 6763029811200. Its totient is φ = 599669839104.

The previous prime is 2251551524503. The next prime is 2251551524533. The reversal of 2251551524520 is 254251551522.

It is a super-2 number, since 2×2251551524520² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470738049 + ... + 470742831.

It is an arithmetic number, because the mean of its divisors is an integer number (52836170400).

Almost surely, 2^{2251551524520} is an apocalyptic number.

2251551524520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251551524520 is an abundant number, since it is smaller than the sum of its proper divisors (4511478286680).

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

2251551524520 is a wasteful number, since it uses less digits than its factorization.

2251551524520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8839 (or 8835 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 2251551524520 in words is "two trillion, two hundred fifty-one billion, five hundred fifty-one million, five hundred twenty-four thousand, five hundred twenty".