53977855932 has 864 divisors, whose sum is σ = 200052163584. Its totient is φ = 11844403200.

The previous prime is 53977855913. The next prime is 53977855973. The reversal of 53977855932 is 23955877935.

53977855932 is a `hidden beast` number, since 5 + 3 + 9 + 7 + 78 + 559 + 3 + 2 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 53977855932.

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 287 ways as a sum of consecutive naturals, for example, 739422648 + ... + 739422720.

It is an arithmetic number, because the mean of its divisors is an integer number (231541856).

Almost surely, 2^53977855932 is an apocalyptic number.

53977855932 is a gapful number since it is divisible by the number (52) 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 53977855932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100026081792).

53977855932 is an abundant number, since it is smaller than the sum of its proper divisors (146074307652).

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

53977855932 is a wasteful number, since it uses less digits than its factorization.

53977855932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 197 counting only the distinct ones).

The product of its digits is 71442000, while the sum is 63.

It can be divided in two parts, 53977 and 855932, that added together give a palindrome (909909).

The spelling of 53977855932 in words is "fifty-three billion, nine hundred seventy-seven million, eight hundred fifty-five thousand, nine hundred thirty-two".