53401122500 has 240 divisors, whose sum is σ = 136319863680. Its totient is φ = 18082560000.

The previous prime is 53401122409. The next prime is 53401122503. The reversal of 53401122500 is 522110435.

It is not an unprimeable number, because it can be changed into a prime (53401122503) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 48151946 + ... + 48153054.

It is an arithmetic number, because the mean of its divisors is an integer number (567999432).

Almost surely, 2^53401122500 is an apocalyptic number.

53401122500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53401122500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68159931840).

53401122500 is an abundant number, since it is smaller than the sum of its proper divisors (82918741180).

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

53401122500 is a wasteful number, since it uses less digits than its factorization.

53401122500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 53401122500 its reverse (522110435), we get a palindrome (53923232935).

The spelling of 53401122500 in words is "fifty-three billion, four hundred one million, one hundred twenty-two thousand, five hundred".