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52501052525 = 522100042101
BaseRepresentation
bin110000111001010011…
…100111110001101101
312000111212222210200212
4300321103213301231
51330010232140100
640041343432205
73536011404035
oct607123476155
9160455883625
1052501052525
11202a1525909
12a2125b5665
134c48c7a26c
1427809768c5
15157422c635
hexc394e7c6d

52501052525 has 6 divisors (see below), whose sum is σ = 65101305162. Its totient is φ = 42000842000.

The previous prime is 52501052423. The next prime is 52501052551. The reversal of 52501052525 is 52525010525.

It can be written as a sum of positive squares in 3 ways, for example, as 479653801 + 52021398724 = 21901^2 + 228082^2 .

It is not a de Polignac number, because 52501052525 - 28 = 52501052269 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52501052491 and 52501052500.

It is a congruent 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, 1050021026 + ... + 1050021075.

It is an arithmetic number, because the mean of its divisors is an integer number (10850217527).

Almost surely, 252501052525 is an apocalyptic number.

It is an amenable number.

52501052525 is a deficient number, since it is larger than the sum of its proper divisors (12600252637).

52501052525 is a wasteful number, since it uses less digits than its factorization.

52501052525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100042111 (or 2100042106 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 32.

The spelling of 52501052525 in words is "fifty-two billion, five hundred one million, fifty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 2100042101 10500210505 52501052525