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55051535 = 5711236217
BaseRepresentation
bin1101001000000…
…0010100001111
310211120220111202
43102000110033
5103043122120
65243540115
71235634050
oct322002417
9124526452
1055051535
1129091040
121652a63b
13b536796
147450727
154c76875
hex348050f

55051535 has 32 divisors (see below), whose sum is σ = 85957632. Its totient is φ = 32820480.

The previous prime is 55051519. The next prime is 55051537. The reversal of 55051535 is 53515055.

It is not a de Polignac number, because 55051535 - 24 = 55051519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55051498 and 55051507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55051537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5747 + ... + 11963.

It is an arithmetic number, because the mean of its divisors is an integer number (2686176).

Almost surely, 255051535 is an apocalyptic number.

55051535 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55051535 is a deficient number, since it is larger than the sum of its proper divisors (30906097).

55051535 is a wasteful number, since it uses less digits than its factorization.

55051535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263.

The product of its (nonzero) digits is 9375, while the sum is 29.

The square root of 55051535 is about 7419.6721625689. The cubic root of 55051535 is about 380.4139878787.

The spelling of 55051535 in words is "fifty-five million, fifty-one thousand, five hundred thirty-five".

Divisors: 1 5 7 11 23 35 55 77 115 161 253 385 805 1265 1771 6217 8855 31085 43519 68387 142991 217595 341935 478709 714955 1000937 1572901 2393545 5004685 7864505 11010307 55051535