52585512140240 has 40 divisors (see below), whose sum is σ = 122678589895848. Its totient is φ = 20962415751680.

The previous prime is 52585512140143. The next prime is 52585512140261. The reversal of 52585512140240 is 4204121558525.

It can be written as a sum of positive squares in 4 ways, for example, as 6211918186384 + 46373593953856 = 2492372^2 + 6809816^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 52585512140191 and 52585512140200.

It is a congruent 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, 1121681171 + ... + 1121728050.

Almost surely, 2^{52585512140240} is an apocalyptic number.

It is an amenable number.

52585512140240 is an abundant number, since it is smaller than the sum of its proper divisors (70093077755608).

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

52585512140240 is a wasteful number, since it uses less digits than its factorization.

52585512140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243409527 (or 2243409521 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 44.

Adding to 52585512140240 its reverse (4204121558525), we get a palindrome (56789633698765).

The spelling of 52585512140240 in words is "fifty-two trillion, five hundred eighty-five billion, five hundred twelve million, one hundred forty thousand, two hundred forty".