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54155125 = 53433241
BaseRepresentation
bin1100111010010…
…1011101110101
310202220100212101
43032211131311
5102330431000
65212422101
71225211443
oct316453565
9122810771
1054155125
1128629602
1216177931
13b2b176b
147299b93
154b4ae6a
hex33a5775

54155125 has 8 divisors (see below), whose sum is σ = 67585752. Its totient is φ = 43324000.

The previous prime is 54155099. The next prime is 54155131. The reversal of 54155125 is 52155145.

It can be written as a sum of positive squares in 4 ways, for example, as 1418481 + 52736644 = 1191^2 + 7262^2 .

It is a de Polignac number, because none of the positive numbers 2k-54155125 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54155093 and 54155102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216496 + ... + 216745.

It is an arithmetic number, because the mean of its divisors is an integer number (8448219).

Almost surely, 254155125 is an apocalyptic number.

It is an amenable number.

54155125 is a deficient number, since it is larger than the sum of its proper divisors (13430627).

54155125 is an equidigital number, since it uses as much as digits as its factorization.

54155125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433256 (or 433246 counting only the distinct ones).

The product of its digits is 5000, while the sum is 28.

The square root of 54155125 is about 7359.0165783208. The cubic root of 54155125 is about 378.3379045982.

The spelling of 54155125 in words is "fifty-four million, one hundred fifty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 433241 2166205 10831025 54155125