52550211402 has 144 divisors (see below), whose sum is σ = 134823983112. Its totient is φ = 15217320960.

The previous prime is 52550211401. The next prime is 52550211403. The reversal of 52550211402 is 20411205525.

52550211402 is a `hidden beast` number, since 5 + 255 + 0 + 2 + 1 + 1 + 402 = 666.

52550211402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52550211401) and next prime (52550211403).

It can be written as a sum of positive squares in 4 ways, for example, as 39672274041 + 12877937361 = 199179^2 + 113481^2 .

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

It is not an unprimeable number, because it can be changed into a prime (52550211401) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2890902 + ... + 2909022.

Almost surely, 2^52550211402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52550211402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67411991556).

52550211402 is an abundant number, since it is smaller than the sum of its proper divisors (82273771710).

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

52550211402 is a wasteful number, since it uses less digits than its factorization.

52550211402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18177 (or 18156 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 52550211402 its reverse (20411205525), we get a palindrome (72961416927).

The spelling of 52550211402 in words is "fifty-two billion, five hundred fifty million, two hundred eleven thousand, four hundred two".