52131031240 has 32 divisors (see below), whose sum is σ = 117811558080. Its totient is φ = 20760548032.

The previous prime is 52131031229. The next prime is 52131031283. The reversal of 52131031240 is 4213013125.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2861572 + ... + 2879731.

It is an arithmetic number, because the mean of its divisors is an integer number (3681611190).

Almost surely, 2^52131031240 is an apocalyptic number.

It is an amenable number.

52131031240 is an abundant number, since it is smaller than the sum of its proper divisors (65680526840).

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

52131031240 is a wasteful number, since it uses less digits than its factorization.

52131031240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741541 (or 5741537 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 52131031240 its reverse (4213013125), we get a palindrome (56344044365).

The spelling of 52131031240 in words is "fifty-two billion, one hundred thirty-one million, thirty-one thousand, two hundred forty".