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53101131552 = 2533731727697
BaseRepresentation
bin110001011101000100…
…101111011100100000
312002001201010222101000
4301131010233130200
51332222342202202
640221101312000
73556616112420
oct613504573440
9162051128330
1053101131552
112057a228097
12a35b565600
1350133a2b01
1427da540480
1515abc6391c
hexc5d12f720

53101131552 has 192 divisors, whose sum is σ = 177568554240. Its totient is φ = 15123345408.

The previous prime is 53101131521. The next prime is 53101131563. The reversal of 53101131552 is 25513110135.

53101131552 is a `hidden beast` number, since 5 + 3 + 101 + 1 + 3 + 1 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1903368 + ... + 1931064.

It is an arithmetic number, because the mean of its divisors is an integer number (924836220).

Almost surely, 253101131552 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 53101131552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88784277120).

53101131552 is an abundant number, since it is smaller than the sum of its proper divisors (124467422688).

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

53101131552 is a wasteful number, since it uses less digits than its factorization.

53101131552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28040 (or 28026 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 53101131552 its reverse (25513110135), we get a palindrome (78614241687).

The spelling of 53101131552 in words is "fifty-three billion, one hundred one million, one hundred thirty-one thousand, five hundred fifty-two".