210053125240 has 128 divisors (see below), whose sum is σ = 548542056960. Its totient is φ = 70905798144.

The previous prime is 210053125211. The next prime is 210053125253. The reversal of 210053125240 is 42521350012.

It is a super-2 number, since 2×210053125240² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4861974 + ... + 4904986.

It is an arithmetic number, because the mean of its divisors is an integer number (4285484820).

Almost surely, 2^210053125240 is an apocalyptic number.

210053125240 is a gapful number since it is divisible by the number (20) 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 210053125240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274271028480).

210053125240 is an abundant number, since it is smaller than the sum of its proper divisors (338488931720).

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

210053125240 is a wasteful number, since it uses less digits than its factorization.

210053125240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43301 (or 43297 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 210053125240 its reverse (42521350012), we get a palindrome (252574475252).

The spelling of 210053125240 in words is "two hundred ten billion, fifty-three million, one hundred twenty-five thousand, two hundred forty".