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52557109 = 1114093391
BaseRepresentation
bin1100100001111…
…1010100110101
310122220011210121
43020133110311
5101423311414
65114251541
71205504503
oct310372465
9118804717
1052557109
1127737a30
1215726bb1
13ab722a7
146da1673
154932724
hex321f535

52557109 has 8 divisors (see below), whose sum is σ = 57392640. Its totient is φ = 47731200.

The previous prime is 52557101. The next prime is 52557119. The reversal of 52557109 is 90175525.

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

It is not a de Polignac number, because 52557109 - 23 = 52557101 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 (52557101) 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, 13804 + ... + 17194.

It is an arithmetic number, because the mean of its divisors is an integer number (7174080).

Almost surely, 252557109 is an apocalyptic number.

It is an amenable number.

52557109 is a deficient number, since it is larger than the sum of its proper divisors (4835531).

52557109 is a wasteful number, since it uses less digits than its factorization.

52557109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 52557109 is about 7249.6281973630. The cubic root of 52557109 is about 374.5793422278.

The spelling of 52557109 in words is "fifty-two million, five hundred fifty-seven thousand, one hundred nine".

Divisors: 1 11 1409 3391 15499 37301 4777919 52557109