53554343920 has 320 divisors, whose sum is σ = 164149493760. Its totient is φ = 15742080000.

The previous prime is 53554343917. The next prime is 53554343933. The reversal of 53554343920 is 2934345535.

It is a happy number.

It is a super-4 number, since 4×53554343920⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29376129 + ... + 29377951.

It is an arithmetic number, because the mean of its divisors is an integer number (512967168).

Almost surely, 2^53554343920 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 53554343920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82074746880).

53554343920 is an abundant number, since it is smaller than the sum of its proper divisors (110595149840).

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

53554343920 is a wasteful number, since it uses less digits than its factorization.

53554343920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 53554343920 in words is "fifty-three billion, five hundred fifty-four million, three hundred forty-three thousand, nine hundred twenty".