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53235025 = 522129401
BaseRepresentation
bin1100101100010…
…0110101010001
310201011121201121
43023010311101
5102112010100
65141002241
71214330104
oct313046521
9121147647
1053235025
1128060298
12159b3381
13b04ba1c
1470da73b
154a1851a
hex32c4d51

53235025 has 6 divisors (see below), whose sum is σ = 66011462. Its totient is φ = 42588000.

The previous prime is 53235011. The next prime is 53235053. The reversal of 53235025 is 52053235.

It can be written as a sum of positive squares in 3 ways, for example, as 294849 + 52940176 = 543^2 + 7276^2 .

It is not a de Polignac number, because 53235025 - 215 = 53202257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2129401 = 53235025 / (5 + 3 + 2 + 3 + 5 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1064676 + ... + 1064725.

Almost surely, 253235025 is an apocalyptic number.

It is an amenable number.

53235025 is a deficient number, since it is larger than the sum of its proper divisors (12776437).

53235025 is a wasteful number, since it uses less digits than its factorization.

53235025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129411 (or 2129406 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 53235025 is about 7296.2336174221. The cubic root of 53235025 is about 376.1829900935.

The spelling of 53235025 in words is "fifty-three million, two hundred thirty-five thousand, twenty-five".

Divisors: 1 5 25 2129401 10647005 53235025