53922978083520 has 2688 divisors, whose sum is σ = 253137131520000. Its totient is φ = 10429206036480.

The previous prime is 53922978083497. The next prime is 53922978083549. The reversal of 53922978083520 is 2538087922935.

53922978083520 is a `hidden beast` number, since 5 + 3 + 9 + 2 + 29 + 7 + 8 + 0 + 83 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 7563887316 + ... + 7563894444.

It is an arithmetic number, because the mean of its divisors is an integer number (94173040000).

Almost surely, 2^{53922978083520} 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 53922978083520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126568565760000).

53922978083520 is an abundant number, since it is smaller than the sum of its proper divisors (199214153436480).

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

53922978083520 is a wasteful number, since it uses less digits than its factorization.

53922978083520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236 (or 7209 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 53922978083520 in words is "fifty-three trillion, nine hundred twenty-two billion, nine hundred seventy-eight million, eighty-three thousand, five hundred twenty".