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55252335872 = 281731247569
BaseRepresentation
bin110011011101010010…
…111011110100000000
312021121122000110221002
4303131102323310000
51401124044221442
641214345151132
73664130051216
oct633522736400
9167548013832
1055252335872
11214835597a8
12a85ba8b4a8
135296c7b286
142962118cb6
151685a42732
hexcdd4bbd00

55252335872 has 36 divisors (see below), whose sum is σ = 110926438980. Its totient is φ = 27466457088.

The previous prime is 55252335857. The next prime is 55252335881. The reversal of 55252335872 is 27853325255.

55252335872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51954820096 + 3297515776 = 227936^2 + 57424^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579497 + ... + 668072.

Almost surely, 255252335872 is an apocalyptic number.

It is an amenable number.

55252335872 is an abundant number, since it is smaller than the sum of its proper divisors (55674103108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55252335872 is a wasteful number, since it uses less digits than its factorization.

55252335872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247758 (or 1247744 counting only the distinct ones).

The product of its digits is 2520000, while the sum is 47.

The spelling of 55252335872 in words is "fifty-five billion, two hundred fifty-two million, three hundred thirty-five thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 128 173 256 346 692 1384 2768 5536 11072 22144 44288 1247569 2495138 4990276 9980552 19961104 39922208 79844416 159688832 215829437 319377664 431658874 863317748 1726635496 3453270992 6906541984 13813083968 27626167936 55252335872