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55872313801 = 411362739361
BaseRepresentation
bin110100000010001111…
…111101100111001001
312100012211121121202121
4310002033331213021
51403411303020201
641400053331241
74015365555103
oct640217754711
9170184547677
1055872313801
1121771512357
12a9b3636b21
135365550215
1429c05c2573
1516c01a99a1
hexd023fd9c9

55872313801 has 4 divisors (see below), whose sum is σ = 57235053204. Its totient is φ = 54509574400.

The previous prime is 55872313789. The next prime is 55872313811. The reversal of 55872313801 is 10831327855.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10831327855 = 52166265571.

It can be written as a sum of positive squares in 2 ways, for example, as 25063639225 + 30808674576 = 158315^2 + 175524^2 .

It is a cyclic number.

It is not a de Polignac number, because 55872313801 - 215 = 55872281033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55872313811) 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 3 ways as a sum of consecutive naturals, for example, 681369640 + ... + 681369721.

It is an arithmetic number, because the mean of its divisors is an integer number (14308763301).

Almost surely, 255872313801 is an apocalyptic number.

It is an amenable number.

55872313801 is a deficient number, since it is larger than the sum of its proper divisors (1362739403).

55872313801 is a wasteful number, since it uses less digits than its factorization.

55872313801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362739402.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 55872313801 in words is "fifty-five billion, eight hundred seventy-two million, three hundred thirteen thousand, eight hundred one".

Divisors: 1 41 1362739361 55872313801