53776721541400 has 192 divisors, whose sum is σ = 147088248249600. Its totient is φ = 18026494272000.

The previous prime is 53776721541397. The next prime is 53776721541421. The reversal of 53776721541400 is 414512767735.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19863205 + ... + 22407595.

It is an arithmetic number, because the mean of its divisors is an integer number (766084626300).

Almost surely, 2^{53776721541400} is an apocalyptic number.

53776721541400 is a gapful number since it is divisible by the number (50) 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 53776721541400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73544124124800).

53776721541400 is an abundant number, since it is smaller than the sum of its proper divisors (93311526708200).

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

53776721541400 is a wasteful number, since it uses less digits than its factorization.

53776721541400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545170 (or 2545161 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 52.

The spelling of 53776721541400 in words is "fifty-three trillion, seven hundred seventy-six billion, seven hundred twenty-one million, five hundred forty-one thousand, four hundred".