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55415164357 = 7311031247691
BaseRepresentation
bin110011100111000000…
…000100110111000101
312022000222102000121201
4303213000010313011
51401442240224412
641242443142501
74001145060640
oct634700046705
9168028360551
1055415164357
11215574631a3
12a8a6514a31
1352c191c2a7
1429799c2a57
151694ea7e57
hexce7004dc5

55415164357 has 16 divisors (see below), whose sum is σ = 65438244864. Its totient is φ = 45921726000.

The previous prime is 55415164351. The next prime is 55415164369. The reversal of 55415164357 is 75346151455.

It is a de Polignac number, because none of the positive numbers 2k-55415164357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55415164351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99882 + ... + 347572.

It is an arithmetic number, because the mean of its divisors is an integer number (4089890304).

Almost surely, 255415164357 is an apocalyptic number.

It is an amenable number.

55415164357 is a deficient number, since it is larger than the sum of its proper divisors (10023080507).

55415164357 is a wasteful number, since it uses less digits than its factorization.

55415164357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248760.

The product of its digits is 1260000, while the sum is 46.

The spelling of 55415164357 in words is "fifty-five billion, four hundred fifteen million, one hundred sixty-four thousand, three hundred fifty-seven".

Divisors: 1 7 31 217 1031 7217 31961 223727 247691 1733837 7678421 53748947 255369421 1787585947 7916452051 55415164357