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55046855 = 5311312711
BaseRepresentation
bin1101000111111…
…1001011000111
310211120200002102
43101333023013
5103042444410
65243502315
71235614313
oct321771307
9124520072
1055046855
1129088576
121652799b
13b534606
14744cb43
154c752a5
hex347f2c7

55046855 has 16 divisors (see below), whose sum is σ = 68732928. Its totient is φ = 42276000.

The previous prime is 55046839. The next prime is 55046863. The reversal of 55046855 is 55864055.

It is not a de Polignac number, because 55046855 - 24 = 55046839 is a prime.

It is a Duffinian number.

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, 18950 + ... + 21660.

It is an arithmetic number, because the mean of its divisors is an integer number (4295808).

Almost surely, 255046855 is an apocalyptic number.

55046855 is a deficient number, since it is larger than the sum of its proper divisors (13686073).

55046855 is a wasteful number, since it uses less digits than its factorization.

55046855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878.

The product of its (nonzero) digits is 120000, while the sum is 38.

The square root of 55046855 is about 7419.3567780502. The cubic root of 55046855 is about 380.4032077499.

The spelling of 55046855 in words is "fifty-five million, forty-six thousand, eight hundred fifty-five".

Divisors: 1 5 31 131 155 655 2711 4061 13555 20305 84041 355141 420205 1775705 11009371 55046855