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55693025 = 5279163173
BaseRepresentation
bin1101010001110…
…0111011100001
310212210111110122
43110130323201
5103224134100
65305410025
71244245223
oct324347341
9125714418
1055693025
1129489aa3
1216799915
13b6cc76b
14757a413
154d51985
hex351cee1

55693025 has 24 divisors (see below), whose sum is σ = 70769280. Its totient is φ = 43467840.

The previous prime is 55693007. The next prime is 55693031. The reversal of 55693025 is 52039655.

It is not a de Polignac number, because 55693025 - 26 = 55692961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321839 + ... + 322011.

It is an arithmetic number, because the mean of its divisors is an integer number (2948720).

Almost surely, 255693025 is an apocalyptic number.

It is an amenable number.

55693025 is a deficient number, since it is larger than the sum of its proper divisors (15076255).

55693025 is a wasteful number, since it uses less digits than its factorization.

55693025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 55693025 is about 7462.7759580467. The cubic root of 55693025 is about 381.8858814110.

The spelling of 55693025 in words is "fifty-five million, six hundred ninety-three thousand, twenty-five".

Divisors: 1 5 25 79 163 173 395 815 865 1975 4075 4325 12877 13667 28199 64385 68335 140995 321925 341675 704975 2227721 11138605 55693025