52421105502 has 56 divisors (see below), whose sum is σ = 118552769640. Its totient is φ = 17375996880.

The previous prime is 52421105417. The next prime is 52421105543. The reversal of 52421105502 is 20550112425.

52421105502 is a `hidden beast` number, since 5 + 2 + 42 + 110 + 5 + 502 = 666.

52421105502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 160552 + ... + 361412.

Almost surely, 2^52421105502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52421105502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59276384820).

52421105502 is an abundant number, since it is smaller than the sum of its proper divisors (66131664138).

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

52421105502 is a wasteful number, since it uses less digits than its factorization.

52421105502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201060 (or 201045 counting only the distinct ones).

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

Adding to 52421105502 its reverse (20550112425), we get a palindrome (72971217927).

The spelling of 52421105502 in words is "fifty-two billion, four hundred twenty-one million, one hundred five thousand, five hundred two".