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55028002554 = 2327436730179
BaseRepresentation
bin110011001111111011…
…001010111011111010
312021000222220011110200
4303033323022323322
51400144132040204
641140213023030
73655434206220
oct631773127372
9167028804420
1055028002554
1121378966868
12a7b8924a76
13525c654375
142940400b10
151670ecd539
hexccfecaefa

55028002554 has 24 divisors (see below), whose sum is σ = 136259816160. Its totient is φ = 15722286408.

The previous prime is 55028002553. The next prime is 55028002577. The reversal of 55028002554 is 45520082055.

It is a happy number.

55028002554 is a `hidden beast` number, since 5 + 502 + 80 + 0 + 25 + 54 = 666.

It is not an unprimeable number, because it can be changed into a prime (55028002553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218364964 + ... + 218365215.

It is an arithmetic number, because the mean of its divisors is an integer number (5677492340).

Almost surely, 255028002554 is an apocalyptic number.

55028002554 is an abundant number, since it is smaller than the sum of its proper divisors (81231813606).

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

55028002554 is a wasteful number, since it uses less digits than its factorization.

55028002554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436730194 (or 436730191 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 55028002554 in words is "fifty-five billion, twenty-eight million, two thousand, five hundred fifty-four".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 436730179 873460358 1310190537 2620381074 3057111253 3930571611 6114222506 7861143222 9171333759 18342667518 27514001277 55028002554