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55253933 = 726330013
BaseRepresentation
bin1101001011000…
…1101110101101
310211222012010222
43102301232231
5103121111213
65252141125
71240436120
oct322615655
9124865128
1055253933
112920a109
12166077a5
13b5a7947
1474a43b7
154cb6808
hex34b1bad

55253933 has 8 divisors (see below), whose sum is σ = 63389568. Its totient is φ = 47178864.

The previous prime is 55253929. The next prime is 55253941. The reversal of 55253933 is 33935255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55253933 - 22 = 55253929 is a prime.

It is a super-2 number, since 2×552539332 = 6105994223936978, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55253893 and 55253902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55253923) 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, 13166 + ... + 16847.

It is an arithmetic number, because the mean of its divisors is an integer number (7923696).

Almost surely, 255253933 is an apocalyptic number.

It is an amenable number.

55253933 is a deficient number, since it is larger than the sum of its proper divisors (8135635).

55253933 is a wasteful number, since it uses less digits than its factorization.

55253933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30283.

The product of its digits is 60750, while the sum is 35.

The square root of 55253933 is about 7433.2989311610. The cubic root of 55253933 is about 380.8796174304.

The spelling of 55253933 in words is "fifty-five million, two hundred fifty-three thousand, nine hundred thirty-three".

Divisors: 1 7 263 1841 30013 210091 7893419 55253933