53540245551144 has 128 divisors (see below), whose sum is σ = 146843047296000. Its totient is φ = 16132840035840.

The previous prime is 53540245551119. The next prime is 53540245551167. The reversal of 53540245551144 is 44115554204535.

It is a junction number, because it is equal to n+sod(n) for n = 53540245551093 and 53540245551102.

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, 85162884 + ... + 85789260.

It is an arithmetic number, because the mean of its divisors is an integer number (1147211307000).

Almost surely, 2^{53540245551144} 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 53540245551144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73421523648000).

53540245551144 is an abundant number, since it is smaller than the sum of its proper divisors (93302801744856).

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

53540245551144 is a wasteful number, since it uses less digits than its factorization.

53540245551144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628223 (or 628219 counting only the distinct ones).

The product of its (nonzero) digits is 4800000, while the sum is 48.

Adding to 53540245551144 its reverse (44115554204535), we get a palindrome (97655799755679).

The spelling of 53540245551144 in words is "fifty-three trillion, five hundred forty billion, two hundred forty-five million, five hundred fifty-one thousand, one hundred forty-four".