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55002550553 = 308811781113
BaseRepresentation
bin110011001110011010…
…000101000100011001
312020222020000001212222
4303032122011010121
51400121123104203
641133503313425
73655004652146
oct631632050431
9166866001788
1055002550553
1121365562355
12a7b02ab875
1352572b2502
14293ac973cd
15166db52038
hexcce685119

55002550553 has 4 divisors (see below), whose sum is σ = 55004362548. Its totient is φ = 55000738560.

The previous prime is 55002550549. The next prime is 55002550571. The reversal of 55002550553 is 35505520055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35505520055 = 57101104011.

It can be written as a sum of positive squares in 2 ways, for example, as 53718259984 + 1284290569 = 231772^2 + 35837^2 .

It is a cyclic number.

It is not a de Polignac number, because 55002550553 - 22 = 55002550549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55002550573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859676 + ... + 921437.

It is an arithmetic number, because the mean of its divisors is an integer number (13751090637).

Almost surely, 255002550553 is an apocalyptic number.

It is an amenable number.

55002550553 is a deficient number, since it is larger than the sum of its proper divisors (1811995).

55002550553 is a wasteful number, since it uses less digits than its factorization.

55002550553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811994.

The product of its (nonzero) digits is 93750, while the sum is 35.

The spelling of 55002550553 in words is "fifty-five billion, two million, five hundred fifty thousand, five hundred fifty-three".

Divisors: 1 30881 1781113 55002550553