54249447616 has 168 divisors, whose sum is σ = 136879529136. Its totient is φ = 21139937280.

The previous prime is 54249447607. The next prime is 54249447641. The reversal of 54249447616 is 61674494245.

It is a super-2 number, since 2×54249447616² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2721526 + ... + 2741386.

It is an arithmetic number, because the mean of its divisors is an integer number (814759102).

Almost surely, 2^54249447616 is an apocalyptic number.

54249447616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54249447616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68439764568).

54249447616 is an abundant number, since it is smaller than the sum of its proper divisors (82630081520).

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

54249447616 is a wasteful number, since it uses less digits than its factorization.

54249447616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19967 (or 19950 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 52.

The spelling of 54249447616 in words is "fifty-four billion, two hundred forty-nine million, four hundred forty-seven thousand, six hundred sixteen".