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55055495 = 5117912671
BaseRepresentation
bin1101001000000…
…1010010000111
310211121002221102
43102001102013
5103043233440
65244010315
71235651435
oct322012207
9124532842
1055055495
1129094010
121653099b
13b538521
147451d55
154c77b15
hex3481487

55055495 has 16 divisors (see below), whose sum is σ = 72990720. Its totient is φ = 39530400.

The previous prime is 55055479. The next prime is 55055569. The reversal of 55055495 is 59455055.

It is not a de Polignac number, because 55055495 - 24 = 55055479 is a prime.

It is a super-2 number, since 2×550554952 = 6062215059390050, which contains 22 as substring.

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, 1991 + ... + 10680.

It is an arithmetic number, because the mean of its divisors is an integer number (4561920).

Almost surely, 255055495 is an apocalyptic number.

55055495 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55055495 is a deficient number, since it is larger than the sum of its proper divisors (17935225).

55055495 is a wasteful number, since it uses less digits than its factorization.

55055495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12766.

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 55055495 is about 7419.9390159219. The cubic root of 55055495 is about 380.4231090490.

The spelling of 55055495 in words is "fifty-five million, fifty-five thousand, four hundred ninety-five".

Divisors: 1 5 11 55 79 395 869 4345 12671 63355 139381 696905 1001009 5005045 11011099 55055495