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51105425120552 = 2311580743467279
BaseRepresentation
bin10111001111010111010001…
…01101011101110100101000
320200221122000221112201012102
423213223220231131310220
523144302402312324202
6300405301434032532
713523150035051505
oct1347535055356450
9220848027481172
1051105425120552
111531376418a490
1258946a7578748
1322692b445544a
14c897313d64ac
155d9581a3dd02
hex2e7ae8b5dd28

51105425120552 has 16 divisors (see below), whose sum is σ = 104533824110400. Its totient is φ = 23229738691120.

The previous prime is 51105425120467. The next prime is 51105425120567. The reversal of 51105425120552 is 25502152450115.

It is a super-2 number, since 2×511054251205522 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290371733552 + ... + 290371733727.

It is an arithmetic number, because the mean of its divisors is an integer number (6533364006900).

Almost surely, 251105425120552 is an apocalyptic number.

It is an amenable number.

51105425120552 is an abundant number, since it is smaller than the sum of its proper divisors (53428398989848).

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

51105425120552 is a wasteful number, since it uses less digits than its factorization.

51105425120552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580743467296 (or 580743467292 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 38.

Adding to 51105425120552 its reverse (25502152450115), we get a palindrome (76607577570667).

The spelling of 51105425120552 in words is "fifty-one trillion, one hundred five billion, four hundred twenty-five million, one hundred twenty thousand, five hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 580743467279 1161486934558 2322973869116 4645947738232 6388178140069 12776356280138 25552712560276 51105425120552