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53455825 = 526135053
BaseRepresentation
bin1100101111101…
…0101111010001
310201120211121101
43023322233101
5102141041300
65145424401
71216236613
oct313725721
9121524541
1053455825
11281a1175
1215a9b101
13b0c8387
147156db3
154a5db6a
hex32fabd1

53455825 has 12 divisors (see below), whose sum is σ = 67373788. Its totient is φ = 42062400.

The previous prime is 53455819. The next prime is 53455879. The reversal of 53455825 is 52855435.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 18421264 + 35034561 = 4292^2 + 5919^2 .

It is not a de Polignac number, because 53455825 - 23 = 53455817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16002 + ... + 19051.

Almost surely, 253455825 is an apocalyptic number.

It is an amenable number.

53455825 is a deficient number, since it is larger than the sum of its proper divisors (13917963).

53455825 is a wasteful number, since it uses less digits than its factorization.

53455825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35124 (or 35119 counting only the distinct ones).

The product of its digits is 120000, while the sum is 37.

The square root of 53455825 is about 7311.3490547231. The cubic root of 53455825 is about 376.7023638952.

The spelling of 53455825 in words is "fifty-three million, four hundred fifty-five thousand, eight hundred twenty-five".

Divisors: 1 5 25 61 305 1525 35053 175265 876325 2138233 10691165 53455825