53511441240 has 32 divisors (see below), whose sum is σ = 160534324080. Its totient is φ = 14269717632.

The previous prime is 53511441239. The next prime is 53511441251. The reversal of 53511441240 is 4214411535.

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 = 53511441198 and 53511441207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222964219 + ... + 222964458.

Almost surely, 2^53511441240 is an apocalyptic number.

It is an amenable number.

53511441240 is an abundant number, since it is smaller than the sum of its proper divisors (107022882840).

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

53511441240 is a wasteful number, since it uses less digits than its factorization.

53511441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445928691 (or 445928687 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 53511441240 its reverse (4214411535), we get a palindrome (57725852775).

The spelling of 53511441240 in words is "fifty-three billion, five hundred eleven million, four hundred forty-one thousand, two hundred forty".