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65557053 = 339072677
BaseRepresentation
bin1111101000010…
…1001000111101
311120100122101000
43322011020331
5113240311203
610301040513
71424140302
oct372051075
9146318330
1065557053
1134006a91
1219b56139
1310774473
1489c70a9
155b4e4a3
hex3e8523d

65557053 has 16 divisors (see below), whose sum is σ = 97264960. Its totient is φ = 43640208.

The previous prime is 65557039. The next prime is 65557097. The reversal of 65557053 is 35075556.

It is not a de Polignac number, because 65557053 - 26 = 65556989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65556999 and 65557017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65557553) 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, 23151 + ... + 25827.

It is an arithmetic number, because the mean of its divisors is an integer number (6079060).

Almost surely, 265557053 is an apocalyptic number.

It is an amenable number.

65557053 is a deficient number, since it is larger than the sum of its proper divisors (31707907).

65557053 is a wasteful number, since it uses less digits than its factorization.

65557053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593 (or 3587 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 65557053 is about 8096.7310070176. The cubic root of 65557053 is about 403.2179037366.

The spelling of 65557053 in words is "sixty-five million, five hundred fifty-seven thousand, fifty-three".

Divisors: 1 3 9 27 907 2677 2721 8031 8163 24093 24489 72279 2428039 7284117 21852351 65557053