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52532560 = 245656657
BaseRepresentation
bin1100100001100…
…1010101010000
310122211221010101
43020121111100
5101422020220
65113542144
71205343103
oct310312520
9118757111
1052532560
1127720543
1215714954
13ab64072
146d9673a
15492a30a
hex3219550

52532560 has 20 divisors (see below), whose sum is σ = 122138388. Its totient is φ = 21012992.

The previous prime is 52532539. The next prime is 52532561. The reversal of 52532560 is 6523525.

It can be written as a sum of positive squares in 2 ways, for example, as 31629376 + 20903184 = 5624^2 + 4572^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52532561) 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, 328249 + ... + 328408.

Almost surely, 252532560 is an apocalyptic number.

It is an amenable number.

52532560 is an abundant number, since it is smaller than the sum of its proper divisors (69605828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52532560 is a wasteful number, since it uses less digits than its factorization.

52532560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656670 (or 656664 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 52532560 is about 7247.9348782946. The cubic root of 52532560 is about 374.5210121526.

The spelling of 52532560 in words is "fifty-two million, five hundred thirty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 656657 1313314 2626628 3283285 5253256 6566570 10506512 13133140 26266280 52532560