52540201422 has 80 divisors (see below), whose sum is σ = 120682248192. Its totient is φ = 17076854160.

The previous prime is 52540201403. The next prime is 52540201423. The reversal of 52540201422 is 22410204525.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52540201423) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2050663 + ... + 2076125.

Almost surely, 2^52540201422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52540201422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60341124096).

52540201422 is an abundant number, since it is smaller than the sum of its proper divisors (68142046770).

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

52540201422 is a wasteful number, since it uses less digits than its factorization.

52540201422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25795 (or 25786 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 52540201422 its reverse (22410204525), we get a palindrome (74950405947).

The spelling of 52540201422 in words is "fifty-two billion, five hundred forty million, two hundred one thousand, four hundred twenty-two".