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55954157 = 71731627
BaseRepresentation
bin1101010101110…
…0101011101101
310220021202200012
43111130223231
5103311013112
65315143005
71246413440
oct325345355
9126252605
1055954157
1129648206
12168a4a65
13b79158c
147607657
154da4022
hex355caed

55954157 has 16 divisors (see below), whose sum is σ = 67985280. Its totient is φ = 45111744.

The previous prime is 55954153. The next prime is 55954207. The reversal of 55954157 is 75145955.

It is not a de Polignac number, because 55954157 - 22 = 55954153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55954153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33578 + ... + 35204.

It is an arithmetic number, because the mean of its divisors is an integer number (4249080).

Almost surely, 255954157 is an apocalyptic number.

It is an amenable number.

55954157 is a deficient number, since it is larger than the sum of its proper divisors (12031123).

55954157 is an equidigital number, since it uses as much as digits as its factorization.

55954157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685 (or 1651 counting only the distinct ones).

The product of its digits is 157500, while the sum is 41.

The square root of 55954157 is about 7480.2511321479. The cubic root of 55954157 is about 382.4818098346.

The spelling of 55954157 in words is "fifty-five million, nine hundred fifty-four thousand, one hundred fifty-seven".

Divisors: 1 7 17 119 289 1627 2023 4913 11389 27659 34391 193613 470203 3291421 7993451 55954157