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53054569 = 173120857
BaseRepresentation
bin1100101001100…
…0110001101001
310200211110012001
43022120301221
5102040221234
65133051001
71212646021
oct312306151
9120743161
1053054569
1127a47757
1215926a61
13acb7849
147090a81
1549ced14
hex3298c69

53054569 has 4 divisors (see below), whose sum is σ = 56175444. Its totient is φ = 49933696.

The previous prime is 53054563. The next prime is 53054581. The reversal of 53054569 is 96545035.

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 39841344 + 13213225 = 6312^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 53054569 - 213 = 53046377 is a prime.

It is a super-2 number, since 2×530545692 = 5629574583551522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53054563) 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, 1560412 + ... + 1560445.

It is an arithmetic number, because the mean of its divisors is an integer number (14043861).

Almost surely, 253054569 is an apocalyptic number.

It is an amenable number.

53054569 is a deficient number, since it is larger than the sum of its proper divisors (3120875).

53054569 is a wasteful number, since it uses less digits than its factorization.

53054569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120874.

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 53054569 is about 7283.8567393929. The cubic root of 53054569 is about 375.7574474028.

The spelling of 53054569 in words is "fifty-three million, fifty-four thousand, five hundred sixty-nine".

Divisors: 1 17 3120857 53054569