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53473531025 = 5217125820073
BaseRepresentation
bin110001110011010001…
…010101010010010001
312010000122212211102002
4301303101111102101
51334003210443100
640322043203345
73602060341235
oct616321252221
9163018784362
1053473531025
1120750461352
12a444216555
13507259c625
142833b9c5c5
1515ce7c42d5
hexc73455491

53473531025 has 12 divisors (see below), whose sum is σ = 70207601292. Its totient is φ = 40262423040.

The previous prime is 53473531009. The next prime is 53473531039. The reversal of 53473531025 is 52013537435.

It can be written as a sum of positive squares in 6 ways, for example, as 2894870416 + 50578660609 = 53804^2 + 224897^2 .

It is not a de Polignac number, because 53473531025 - 24 = 53473531009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53473531025.

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, 62909612 + ... + 62910461.

It is an arithmetic number, because the mean of its divisors is an integer number (5850633441).

Almost surely, 253473531025 is an apocalyptic number.

It is an amenable number.

53473531025 is a deficient number, since it is larger than the sum of its proper divisors (16734070267).

53473531025 is a wasteful number, since it uses less digits than its factorization.

53473531025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125820100 (or 125820095 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 38.

The spelling of 53473531025 in words is "fifty-three billion, four hundred seventy-three million, five hundred thirty-one thousand, twenty-five".

Divisors: 1 5 17 25 85 425 125820073 629100365 2138941241 3145501825 10694706205 53473531025