53015502040 has 128 divisors (see below), whose sum is σ = 124759958400. Its totient is φ = 20250316800.

The previous prime is 53015502037. The next prime is 53015502073. The reversal of 53015502040 is 4020551035.

It is a junction number, because it is equal to n+sod(n) for n = 53015501996 and 53015502014.

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, 51321364 + ... + 51322396.

It is an arithmetic number, because the mean of its divisors is an integer number (974687175).

Almost surely, 2^53015502040 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 53015502040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62379979200).

53015502040 is an abundant number, since it is smaller than the sum of its proper divisors (71744456360).

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

53015502040 is a wasteful number, since it uses less digits than its factorization.

53015502040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 53015502040 in words is "fifty-three billion, fifteen million, five hundred two thousand, forty".