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80551825 = 526435011
BaseRepresentation
bin1001100110100…
…01111110010001
312121120110022221
410303101332101
5131110124300
611554301041
71665451654
oct463217621
9177513287
1080551825
1141518862
1222b87781
13138c4603
14a9ab89b
15711231a
hex4cd1f91

80551825 has 12 divisors (see below), whose sum is σ = 100059568. Its totient is φ = 64328400.

The previous prime is 80551789. The next prime is 80551841. The reversal of 80551825 is 52815508.

It is a happy number.

It is not a de Polignac number, because 80551825 - 213 = 80543633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13570 + ... + 18580.

Almost surely, 280551825 is an apocalyptic number.

It is an amenable number.

80551825 is a deficient number, since it is larger than the sum of its proper divisors (19507743).

80551825 is a wasteful number, since it uses less digits than its factorization.

80551825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664 (or 5659 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 80551825 is about 8975.0668521187. The cubic root of 80551825 is about 431.8753945180.

The spelling of 80551825 in words is "eighty million, five hundred fifty-one thousand, eight hundred twenty-five".

Divisors: 1 5 25 643 3215 5011 16075 25055 125275 3222073 16110365 80551825