52101140240 has 20 divisors (see below), whose sum is σ = 121135151244. Its totient is φ = 20840456064.

The previous prime is 52101140209. The next prime is 52101140251. The reversal of 52101140240 is 4204110125.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38875220224 + 13225920016 = 197168^2 + 115004^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325632047 + ... + 325632206.

Almost surely, 2^52101140240 is an apocalyptic number.

It is an amenable number.

52101140240 is an abundant number, since it is smaller than the sum of its proper divisors (69034011004).

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

52101140240 is a wasteful number, since it uses less digits than its factorization.

52101140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651264266 (or 651264260 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 52101140240 its reverse (4204110125), we get a palindrome (56305250365).

The spelling of 52101140240 in words is "fifty-two billion, one hundred one million, one hundred forty thousand, two hundred forty".