52515286740 has 384 divisors, whose sum is σ = 199787212800. Its totient is φ = 11184376320.

The previous prime is 52515286739. The next prime is 52515286741. The reversal of 52515286740 is 4768251525.

52515286740 is a `hidden beast` number, since 5 + 2 + 51 + 528 + 6 + 74 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (52515286739) and next prime (52515286741).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52515286741) 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 127 ways as a sum of consecutive naturals, for example, 4375027 + ... + 4387013.

It is an arithmetic number, because the mean of its divisors is an integer number (520279200).

Almost surely, 2^52515286740 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 52515286740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99893606400).

52515286740 is an abundant number, since it is smaller than the sum of its proper divisors (147271926060).

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

52515286740 is a wasteful number, since it uses less digits than its factorization.

52515286740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12092 (or 12084 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 52515286740 in words is "fifty-two billion, five hundred fifteen million, two hundred eighty-six thousand, seven hundred forty".