53011249544 has 64 divisors (see below), whose sum is σ = 109870387200. Its totient is φ = 23778504000.

The previous prime is 53011249541. The next prime is 53011249553. The reversal of 53011249544 is 44594211035.

It is a junction number, because it is equal to n+sod(n) for n = 53011249498 and 53011249507.

It is not an unprimeable number, because it can be changed into a prime (53011249541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2029769 + ... + 2055719.

It is an arithmetic number, because the mean of its divisors is an integer number (1716724800).

Almost surely, 2^53011249544 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 53011249544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54935193600).

53011249544 is an abundant number, since it is smaller than the sum of its proper divisors (56859137656).

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

53011249544 is a wasteful number, since it uses less digits than its factorization.

53011249544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26274 (or 26270 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 53011249544 in words is "fifty-three billion, eleven million, two hundred forty-nine thousand, five hundred forty-four".