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53950225 = 527244041
BaseRepresentation
bin1100110111001…
…1011100010001
310202111221210111
43031303130101
5102302401400
65204201321
71223366200
oct315633421
9122457714
1053950225
11284a966a
1216099241
13b23c414
147245237
154b0a3ba
hex3373711

53950225 has 18 divisors (see below), whose sum is σ = 77822214. Its totient is φ = 36993600.

The previous prime is 53950213. The next prime is 53950241. The reversal of 53950225 is 52205935.

It can be written as a sum of positive squares in 3 ways, for example, as 4064256 + 49885969 = 2016^2 + 7063^2 .

It is not a de Polignac number, because 53950225 - 213 = 53942033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20796 + ... + 23245.

Almost surely, 253950225 is an apocalyptic number.

It is an amenable number.

53950225 is a deficient number, since it is larger than the sum of its proper divisors (23871989).

53950225 is a wasteful number, since it uses less digits than its factorization.

53950225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44065 (or 44053 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 53950225 is about 7345.0816877690. The cubic root of 53950225 is about 377.8601448782.

The spelling of 53950225 in words is "fifty-three million, nine hundred fifty thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 44041 220205 308287 1101025 1541435 2158009 7707175 10790045 53950225