52515232140 has 48 divisors (see below), whose sum is σ = 168048744192. Its totient is φ = 12003481536.

The previous prime is 52515232129. The next prime is 52515232183. The reversal of 52515232140 is 4123251525.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 52515232098 and 52515232107.

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, 62517714 + ... + 62518553.

It is an arithmetic number, because the mean of its divisors is an integer number (3501015504).

Almost surely, 2^52515232140 is an apocalyptic number.

It is an amenable number.

52515232140 is an abundant number, since it is smaller than the sum of its proper divisors (115533512052).

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

52515232140 is a wasteful number, since it uses less digits than its factorization.

52515232140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125036286 (or 125036284 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 52515232140 its reverse (4123251525), we get a palindrome (56638483665).

The spelling of 52515232140 in words is "fifty-two billion, five hundred fifteen million, two hundred thirty-two thousand, one hundred forty".