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53215653792 = 25371743127853
BaseRepresentation
bin110001100011111001…
…100110111110100000
312002100200122022100110
4301203321212332200
51332441201410132
640240312051320
73562506410460
oct614371467640
9162320568313
1053215653792
1120628938374
12a391993b40
13503102c652
14280b831ba0
1515b6d361cc
hexc63e66fa0

53215653792 has 384 divisors, whose sum is σ = 174535409664. Its totient is φ = 13850984448.

The previous prime is 53215653769. The next prime is 53215653793. The reversal of 53215653792 is 29735651235.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (53215653793) by changing a digit.

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, 62386038 + ... + 62386890.

It is an arithmetic number, because the mean of its divisors is an integer number (454519296).

Almost surely, 253215653792 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 53215653792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87267704832).

53215653792 is an abundant number, since it is smaller than the sum of its proper divisors (121319755872).

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

53215653792 is a wasteful number, since it uses less digits than its factorization.

53215653792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1052 counting only the distinct ones).

The product of its digits is 1701000, while the sum is 48.

The spelling of 53215653792 in words is "fifty-three billion, two hundred fifteen million, six hundred fifty-three thousand, seven hundred ninety-two".