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55284917925 = 3521017298339
BaseRepresentation
bin110011011111001111…
…001110011010100101
312021200220022211002210
4303133033032122211
51401210414333200
641221511354033
73665004022506
oct633717163245
9167626284083
1055284917925
112149a993116
12a86a982919
1352a09485b3
14296659abad
15168882b650
hexcdf3ce6a5

55284917925 has 24 divisors (see below), whose sum is σ = 92309404320. Its totient is φ = 29193352000.

The previous prime is 55284917911. The next prime is 55284917957. The reversal of 55284917925 is 52971948255.

It is not a de Polignac number, because 55284917925 - 27 = 55284917797 is a prime.

It is a congruent number.

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, 3641595 + ... + 3656744.

It is an arithmetic number, because the mean of its divisors is an integer number (3846225180).

Almost surely, 255284917925 is an apocalyptic number.

It is an amenable number.

55284917925 is a deficient number, since it is larger than the sum of its proper divisors (37024486395).

55284917925 is a wasteful number, since it uses less digits than its factorization.

55284917925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298453 (or 7298448 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 57.

The spelling of 55284917925 in words is "fifty-five billion, two hundred eighty-four million, nine hundred seventeen thousand, nine hundred twenty-five".

Divisors: 1 3 5 15 25 75 101 303 505 1515 2525 7575 7298339 21895017 36491695 109475085 182458475 547375425 737132239 2211396717 3685661195 11056983585 18428305975 55284917925