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55415162879 = 1014491221971
BaseRepresentation
bin110011100111000000…
…000100011111111111
312022000222101221120222
4303213000010133333
51401442240203004
641242443131555
74001145053426
oct634700043777
9168028357528
1055415162879
112155746207a
12a8a6513bbb
1352c191b70b
1429799c22bd
151694ea77be
hexce70047ff

55415162879 has 8 divisors (see below), whose sum is σ = 56088514800. Its totient is φ = 54744256000.

The previous prime is 55415162867. The next prime is 55415162909. The reversal of 55415162879 is 97826151455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55415162879 - 28 = 55415162623 is a prime.

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 55415162879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55415162819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565637 + ... + 656334.

It is an arithmetic number, because the mean of its divisors is an integer number (7011064350).

Almost surely, 255415162879 is an apocalyptic number.

55415162879 is a deficient number, since it is larger than the sum of its proper divisors (673351921).

55415162879 is a wasteful number, since it uses less digits than its factorization.

55415162879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222521.

The product of its digits is 3024000, while the sum is 53.

The spelling of 55415162879 in words is "fifty-five billion, four hundred fifteen million, one hundred sixty-two thousand, eight hundred seventy-nine".

Divisors: 1 101 449 45349 1221971 123419071 548664979 55415162879