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55083655 = 5111758913
BaseRepresentation
bin1101001000100…
…0001010000111
310211122112120101
43102020022013
5103100134110
65244344531
71236126514
oct322101207
9124575511
1055083655
1129103190
1216545147
13b5482a3
14745c30b
154c8113a
hex3488287

55083655 has 16 divisors (see below), whose sum is σ = 76352544. Its totient is φ = 37703680.

The previous prime is 55083653. The next prime is 55083659. The reversal of 55083655 is 55638055.

It is not a de Polignac number, because 55083655 - 21 = 55083653 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 (55083653) 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, 28522 + ... + 30391.

It is an arithmetic number, because the mean of its divisors is an integer number (4772034).

Almost surely, 255083655 is an apocalyptic number.

55083655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55083655 is a deficient number, since it is larger than the sum of its proper divisors (21268889).

55083655 is a wasteful number, since it uses less digits than its factorization.

55083655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58946.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 55083655 is about 7421.8363630573. The cubic root of 55083655 is about 380.4879580939.

The spelling of 55083655 in words is "fifty-five million, eighty-three thousand, six hundred fifty-five".

Divisors: 1 5 11 17 55 85 187 935 58913 294565 648043 1001521 3240215 5007605 11016731 55083655