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53534531 = 137390763
BaseRepresentation
bin1100110000110…
…1111101000011
310201201211120102
43030031331003
5102201101111
65151233015
71220015231
oct314157503
9121654512
1053534531
1128245316
1215b1876b
13b12514b
147177951
154a7713b
hex330df43

53534531 has 4 divisors (see below), whose sum is σ = 53925432. Its totient is φ = 53143632.

The previous prime is 53534519. The next prime is 53534539. The reversal of 53534531 is 13543535.

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

It is a cyclic number.

It is not a de Polignac number, because 53534531 - 222 = 49340227 is a prime.

It is a super-2 number, since 2×535345312 = 5731892018779922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53534494 and 53534503.

It is not an unprimeable number, because it can be changed into a prime (53534539) 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, 195245 + ... + 195518.

It is an arithmetic number, because the mean of its divisors is an integer number (13481358).

Almost surely, 253534531 is an apocalyptic number.

53534531 is a deficient number, since it is larger than the sum of its proper divisors (390901).

53534531 is a wasteful number, since it uses less digits than its factorization.

53534531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390900.

The product of its digits is 13500, while the sum is 29.

The square root of 53534531 is about 7316.7295289631. The cubic root of 53534531 is about 376.8871532172.

The spelling of 53534531 in words is "fifty-three million, five hundred thirty-four thousand, five hundred thirty-one".

Divisors: 1 137 390763 53534531