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55154075 = 522206163
BaseRepresentation
bin1101001001100…
…1010110011011
310211210010011112
43102121112123
5103104412300
65250050535
71236542024
oct322312633
9124703145
1055154075
1129151089
1216579a4b
13b571362
147479c4b
154c96e35
hex349959b

55154075 has 6 divisors (see below), whose sum is σ = 68391084. Its totient is φ = 44123240.

The previous prime is 55154063. The next prime is 55154083. The reversal of 55154075 is 57045155.

It is not a de Polignac number, because 55154075 - 222 = 50959771 is a prime.

It is a super-3 number, since 3×551540753 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1103057 + ... + 1103106.

It is an arithmetic number, because the mean of its divisors is an integer number (11398514).

Almost surely, 255154075 is an apocalyptic number.

55154075 is a deficient number, since it is larger than the sum of its proper divisors (13237009).

55154075 is a wasteful number, since it uses less digits than its factorization.

55154075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206173 (or 2206168 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 55154075 is about 7426.5789566933. The cubic root of 55154075 is about 380.6500300802.

The spelling of 55154075 in words is "fifty-five million, one hundred fifty-four thousand, seventy-five".

Divisors: 1 5 25 2206163 11030815 55154075