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52553949 = 3737239283
BaseRepresentation
bin1100100001111…
…0100011011101
310122220000110120
43020132203131
5101423211244
65114225153
71205462340
oct310364335
9118800416
1052553949
1127735618
12157251b9
13ab70a16
146da0457
154931819
hex321e8dd

52553949 has 32 divisors (see below), whose sum is σ = 82882560. Its totient is φ = 28994112.

The previous prime is 52553947. The next prime is 52553957. The reversal of 52553949 is 94935525.

It is not a de Polignac number, because 52553949 - 21 = 52553947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52553949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52553947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185562 + ... + 185844.

It is an arithmetic number, because the mean of its divisors is an integer number (2590080).

Almost surely, 252553949 is an apocalyptic number.

It is an amenable number.

52553949 is a deficient number, since it is larger than the sum of its proper divisors (30328611).

52553949 is a wasteful number, since it uses less digits than its factorization.

52553949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569.

The product of its digits is 243000, while the sum is 42.

The square root of 52553949 is about 7249.4102518757. The cubic root of 52553949 is about 374.5718348739.

The spelling of 52553949 in words is "fifty-two million, five hundred fifty-three thousand, nine hundred forty-nine".

Divisors: 1 3 7 21 37 111 239 259 283 717 777 849 1673 1981 5019 5943 8843 10471 26529 31413 61901 67637 73297 185703 202911 219891 473459 1420377 2502569 7507707 17517983 52553949