5256521412120 has 288 divisors, whose sum is σ = 19235950493760. Its totient is φ = 1243227110400.

The previous prime is 5256521412119. The next prime is 5256521412151. The reversal of 5256521412120 is 212141256525.

5256521412120 is a `hidden beast` number, since 5 + 2 + 5 + 6 + 521 + 4 + 1 + 2 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 314337 + ... + 3257583.

It is an arithmetic number, because the mean of its divisors is an integer number (66791494770).

Almost surely, 2^{5256521412120} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5256521412120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9617975246880).

5256521412120 is an abundant number, since it is smaller than the sum of its proper divisors (13979429081640).

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

5256521412120 is a wasteful number, since it uses less digits than its factorization.

5256521412120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943327 (or 2943309 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 5256521412120 its reverse (212141256525), we get a palindrome (5468662668645).

The spelling of 5256521412120 in words is "five trillion, two hundred fifty-six billion, five hundred twenty-one million, four hundred twelve thousand, one hundred twenty".