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55825852855 = 5233208123027
BaseRepresentation
bin110011111111011110…
…101110100110110111
312100002121012011022211
4303333132232212313
51403312404242410
641351313434251
74014262630333
oct637736564667
9170077164284
1055825852855
1121748269583
12a99bb6b987
135358a33936
1429b836a7c3
1516bb07d68a
hexcff7ae9b7

55825852855 has 16 divisors (see below), whose sum is σ = 67313791584. Its totient is φ = 44445706240.

The previous prime is 55825852723. The next prime is 55825852879.

55825852855 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55825852855 - 233 = 47235918263 is a prime.

It is a super-2 number, since 2×558258528552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55825852855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2412852 + ... + 2435878.

It is an arithmetic number, because the mean of its divisors is an integer number (4207111974).

Almost surely, 255825852855 is an apocalyptic number.

55825852855 is a deficient number, since it is larger than the sum of its proper divisors (11487938729).

55825852855 is a wasteful number, since it uses less digits than its factorization.

55825852855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25346.

The product of its digits is 32000000, while the sum is 58.

The spelling of 55825852855 in words is "fifty-five billion, eight hundred twenty-five million, eight hundred fifty-two thousand, eight hundred fifty-five".

Divisors: 1 5 233 1165 2081 10405 23027 115135 484873 2424365 5365291 26826455 47919187 239595935 11165170571 55825852855