52856220144 has 160 divisors (see below), whose sum is σ = 175362776064. Its totient is φ = 13333985280.

The previous prime is 52856220113. The next prime is 52856220199. The reversal of 52856220144 is 44102265825.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162597 + ... + 363524.

Almost surely, 2^52856220144 is an apocalyptic number.

It is an amenable number.

52856220144 is an abundant number, since it is smaller than the sum of its proper divisors (122506555920).

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

52856220144 is a wasteful number, since it uses less digits than its factorization.

52856220144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526175 (or 526169 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

Adding to 52856220144 its reverse (44102265825), we get a palindrome (96958485969).

The spelling of 52856220144 in words is "fifty-two billion, eight hundred fifty-six million, two hundred twenty thousand, one hundred forty-four".