52238121390 has 1152 divisors, whose sum is σ = 197323776000. Its totient is φ = 9510359040.

The previous prime is 52238121389. The next prime is 52238121401. The reversal of 52238121390 is 9312183225.

52238121390 is a `hidden beast` number, since 522 + 3 + 8 + 121 + 3 + 9 + 0 = 666.

52238121390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 1685100675 + ... + 1685100705.

It is an arithmetic number, because the mean of its divisors is an integer number (171288000).

Almost surely, 2^52238121390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52238121390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98661888000).

52238121390 is an abundant number, since it is smaller than the sum of its proper divisors (145085654610).

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

52238121390 is a wasteful number, since it uses less digits than its factorization.

52238121390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 52238121390 in words is "fifty-two billion, two hundred thirty-eight million, one hundred twenty-one thousand, three hundred ninety".