53351241240 has 128 divisors (see below), whose sum is σ = 175061606400. Its totient is φ = 12899742720.

The previous prime is 53351241199. The next prime is 53351241247. The reversal of 53351241240 is 4214215335.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 53351241198 and 53351241207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53351241247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452796 + ... + 558324.

It is an arithmetic number, because the mean of its divisors is an integer number (1367668800).

Almost surely, 2^53351241240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53351241240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87530803200).

53351241240 is an abundant number, since it is smaller than the sum of its proper divisors (121710365160).

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

53351241240 is a wasteful number, since it uses less digits than its factorization.

53351241240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105937 (or 105933 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 53351241240 its reverse (4214215335), we get a palindrome (57565456575).

The spelling of 53351241240 in words is "fifty-three billion, three hundred fifty-one million, two hundred forty-one thousand, two hundred forty".