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55787053 = 78539343
BaseRepresentation
bin1101010011001…
…1111000101101
310212222021110011
43110303320231
5103240141203
65311413221
71245116320
oct324637055
9125867404
1055787053
1129543703
1216824211
13b7334ba
1475a27b7
154d6e76d
hex3533e2d

55787053 has 8 divisors (see below), whose sum is σ = 63838208. Its totient is φ = 47756304.

The previous prime is 55787041. The next prime is 55787087. The reversal of 55787053 is 35078755.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55787053 is a prime.

It is a super-2 number, since 2×557870532 = 6224390564849618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55786997 and 55787015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55787033) 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, 1300 + ... + 10642.

It is an arithmetic number, because the mean of its divisors is an integer number (7979776).

Almost surely, 255787053 is an apocalyptic number.

It is an amenable number.

55787053 is a deficient number, since it is larger than the sum of its proper divisors (8051155).

55787053 is an equidigital number, since it uses as much as digits as its factorization.

55787053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10203.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 55787053 is about 7469.0731017978. The cubic root of 55787053 is about 382.1006765700.

The spelling of 55787053 in words is "fifty-five million, seven hundred eighty-seven thousand, fifty-three".

Divisors: 1 7 853 5971 9343 65401 7969579 55787053