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53319025 = 522132761
BaseRepresentation
bin1100101101100…
…1010101110001
310201022212221201
43023121111301
5102122202100
65142451201
71215130024
oct313312561
9121285851
1053319025
1128108411
1215a33b01
13b07b026
14711d1bb
154a3336a
hex32d9571

53319025 has 6 divisors (see below), whose sum is σ = 66115622. Its totient is φ = 42655200.

The previous prime is 53318999. The next prime is 53319041. The reversal of 53319025 is 52091335.

It can be written as a sum of positive squares in 3 ways, for example, as 451584 + 52867441 = 672^2 + 7271^2 .

It is not a de Polignac number, because 53319025 - 27 = 53318897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53318984 and 53319002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1066356 + ... + 1066405.

Almost surely, 253319025 is an apocalyptic number.

It is an amenable number.

53319025 is a deficient number, since it is larger than the sum of its proper divisors (12796597).

53319025 is a wasteful number, since it uses less digits than its factorization.

53319025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132771 (or 2132766 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 53319025 is about 7301.9877430738. The cubic root of 53319025 is about 376.3807468988.

The spelling of 53319025 in words is "fifty-three million, three hundred nineteen thousand, twenty-five".

Divisors: 1 5 25 2132761 10663805 53319025