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55691345629 = 431155383203
BaseRepresentation
bin110011110111011101…
…100111111011011101
312022202020002111002201
4303313131213323131
51403023441030004
641330110451501
74011040425103
oct636735477335
9168666074081
1055691345629
1121689349287
12a962b03b91
135336bca76a
1429a4555c73
1516ae35e6a4
hexcf7767edd

55691345629 has 8 divisors (see below), whose sum is σ = 55857174912. Its totient is φ = 55525686720.

The previous prime is 55691345627. The next prime is 55691345659. The reversal of 55691345629 is 92654319655.

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 55691345629 - 21 = 55691345627 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 55691345629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55691345627) 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, 627742 + ... + 710944.

It is an arithmetic number, because the mean of its divisors is an integer number (6982146864).

Almost surely, 255691345629 is an apocalyptic number.

It is an amenable number.

55691345629 is a deficient number, since it is larger than the sum of its proper divisors (165829283).

55691345629 is a wasteful number, since it uses less digits than its factorization.

55691345629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85187.

The product of its digits is 8748000, while the sum is 55.

The spelling of 55691345629 in words is "fifty-five billion, six hundred ninety-one million, three hundred forty-five thousand, six hundred twenty-nine".

Divisors: 1 431 1553 83203 669343 35860493 129214259 55691345629