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52752437 = 53995329
BaseRepresentation
bin1100100100111…
…1000000110101
310200021002201222
43021033000311
5102001034222
65122400125
71210250123
oct311170065
9120232658
1052752437
1127860761
1215800045
13ac1017a
147012913
154970542
hex324f035

52752437 has 4 divisors (see below), whose sum is σ = 53747820. Its totient is φ = 51757056.

The previous prime is 52752433. The next prime is 52752439. The reversal of 52752437 is 73425725.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34210801 + 18541636 = 5849^2 + 4306^2 .

It is a cyclic number.

It is not a de Polignac number, because 52752437 - 22 = 52752433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52752397 and 52752406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52752433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497612 + ... + 497717.

It is an arithmetic number, because the mean of its divisors is an integer number (13436955).

Almost surely, 252752437 is an apocalyptic number.

It is an amenable number.

52752437 is a deficient number, since it is larger than the sum of its proper divisors (995383).

52752437 is an equidigital number, since it uses as much as digits as its factorization.

52752437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995382.

The product of its digits is 58800, while the sum is 35.

The square root of 52752437 is about 7263.0872912282. The cubic root of 52752437 is about 375.0428087425.

The spelling of 52752437 in words is "fifty-two million, seven hundred fifty-two thousand, four hundred thirty-seven".

Divisors: 1 53 995329 52752437