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2550625 = 5471153
BaseRepresentation
bin1001101110101101100001
311210120210121
421232231201
51123110000
6130400241
730452140
oct11565541
94716717
102550625
111492360
12a30081
136b3c5c
144a5757
15355b1a
hex26eb61

2550625 has 40 divisors (see below), whose sum is σ = 4048704. Its totient is φ = 1560000.

The previous prime is 2550619. The next prime is 2550641. The reversal of 2550625 is 5260552.

It is not a de Polignac number, because 2550625 - 27 = 2550497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

2550625 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2550625.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 48099 + ... + 48151.

22550625 is an apocalyptic number.

2550625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2550625 is a deficient number, since it is larger than the sum of its proper divisors (1498079).

2550625 is an equidigital number, since it uses as much as digits as its factorization.

2550625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2550625 is about 1597.0676253684. The cubic root of 2550625 is about 136.6308816348.

It can be divided in two parts, 25 and 50625, that multiplied together give a square (1265625 = 11252).

The spelling of 2550625 in words is "two million, five hundred fifty thousand, six hundred twenty-five".

Divisors: 1 5 7 11 25 35 53 55 77 125 175 265 275 371 385 583 625 875 1325 1375 1855 1925 2915 4081 4375 6625 6875 9275 9625 14575 20405 33125 46375 48125 72875 102025 231875 364375 510125 2550625