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51325404055 = 5173491730167
BaseRepresentation
bin101111110011001110…
…111000001110010111
311220110221210200011221
4233303032320032113
51320103300412210
635324545311211
73464614510342
oct576316701627
9156427720157
1051325404055
111a848941802
129b44935507
134abc530a93
1426ac785459
151505e021da
hexbf33b8397

51325404055 has 16 divisors (see below), whose sum is σ = 65400350400. Its totient is φ = 38534257152.

The previous prime is 51325404023. The next prime is 51325404101. The reversal of 51325404055 is 55040452315.

It is a cyclic number.

It is not a de Polignac number, because 51325404055 - 25 = 51325404023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51325404055.

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, 835419 + ... + 894748.

It is an arithmetic number, because the mean of its divisors is an integer number (4087521900).

Almost surely, 251325404055 is an apocalyptic number.

51325404055 is a deficient number, since it is larger than the sum of its proper divisors (14074946345).

51325404055 is a wasteful number, since it uses less digits than its factorization.

51325404055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730538.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 51325404055 in words is "fifty-one billion, three hundred twenty-five million, four hundred four thousand, fifty-five".

Divisors: 1 5 17 85 349 1745 5933 29665 1730167 8650835 29412839 147064195 603828283 3019141415 10265080811 51325404055