53496992640 has 1536 divisors, whose sum is σ = 236295843840. Its totient is φ = 10156769280.

The previous prime is 53496992639. The next prime is 53496992683. The reversal of 53496992640 is 4629969435.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 644542039 + ... + 644542121.

It is an arithmetic number, because the mean of its divisors is an integer number (153838440).

Almost surely, 2^53496992640 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 53496992640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118147921920).

53496992640 is an abundant number, since it is smaller than the sum of its proper divisors (182798851200).

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

53496992640 is a wasteful number, since it uses less digits than its factorization.

53496992640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 57.

The spelling of 53496992640 in words is "fifty-three billion, four hundred ninety-six million, nine hundred ninety-two thousand, six hundred forty".