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54979825 = 5219283409
BaseRepresentation
bin1101000110111…
…0110011110001
310211110021010211
43101232303301
5103033323300
65242224121
71235215015
oct321566361
9124407124
1054979825
112904217a
12164b5041
13b50cc54
147432545
154c604ba
hex346ecf1

54979825 has 24 divisors (see below), whose sum is σ = 72192800. Its totient is φ = 41420160.

The previous prime is 54979823. The next prime is 54979831. The reversal of 54979825 is 52897945.

It is not a de Polignac number, because 54979825 - 21 = 54979823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54979823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134221 + ... + 134629.

Almost surely, 254979825 is an apocalyptic number.

It is an amenable number.

54979825 is a deficient number, since it is larger than the sum of its proper divisors (17212975).

54979825 is a wasteful number, since it uses less digits than its factorization.

54979825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721 (or 716 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 54979825 is about 7414.8381641139. The cubic root of 54979825 is about 380.2487406524.

The spelling of 54979825 in words is "fifty-four million, nine hundred seventy-nine thousand, eight hundred twenty-five".

Divisors: 1 5 19 25 95 283 409 475 1415 2045 5377 7075 7771 10225 26885 38855 115747 134425 194275 578735 2199193 2893675 10995965 54979825