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55035297880 = 2352715077057
BaseRepresentation
bin110011010000010111…
…000000000001011000
312021001111121210202221
4303100113000001120
51400203014013010
641141033233424
73655553212333
oct632027000130
9167044553687
1055035297880
1121381a99962
12a7bb262874
135261009b24
14294137d61a
15167196edda
hexcd05c0058

55035297880 has 32 divisors (see below), whose sum is σ = 124286379840. Its totient is φ = 21932881920.

The previous prime is 55035297869. The next prime is 55035297887. The reversal of 55035297880 is 8879253055.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55035297887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2527689 + ... + 2549368.

It is an arithmetic number, because the mean of its divisors is an integer number (3883949370).

Almost surely, 255035297880 is an apocalyptic number.

It is an amenable number.

55035297880 is an abundant number, since it is smaller than the sum of its proper divisors (69251081960).

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

55035297880 is a wasteful number, since it uses less digits than its factorization.

55035297880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077339 (or 5077335 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 52.

The spelling of 55035297880 in words is "fifty-five billion, thirty-five million, two hundred ninety-seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 271 542 1084 1355 2168 2710 5420 10840 5077057 10154114 20308228 25385285 40616456 50770570 101541140 203082280 1375882447 2751764894 5503529788 6879412235 11007059576 13758824470 27517648940 55035297880