51525901025280 has 952 divisors, whose sum is σ = 202272510587760. Its totient is φ = 12490490511360.

The previous prime is 51525901025267. The next prime is 51525901025297. The reversal of 51525901025280 is 8252010952515.

51525901025280 is a `hidden beast` number, since 5 + 1 + 5 + 2 + 590 + 1 + 0 + 2 + 52 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2627656116 + ... + 2627675724.

Almost surely, 2^{51525901025280} 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 51525901025280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101136255293880).

51525901025280 is an abundant number, since it is smaller than the sum of its proper divisors (150746609562480).

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

51525901025280 is an frugal number, since it uses more digits than its factorization.

51525901025280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19675 (or 19630 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 45.

Adding to 51525901025280 its reverse (8252010952515), we get a palindrome (59777911977795).

The spelling of 51525901025280 in words is "fifty-one trillion, five hundred twenty-five billion, nine hundred one million, twenty-five thousand, two hundred eighty".