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53053057 = 411293977
BaseRepresentation
bin1100101001100…
…0011010000001
310200211101010001
43022120122001
5102040144212
65133040001
71212641431
oct312303201
9120741101
1053053057
1127a46602
1215926001
13acb6c55
1470902c1
1549ce657
hex3298681

53053057 has 4 divisors (see below), whose sum is σ = 54347076. Its totient is φ = 51759040.

The previous prime is 53053051. The next prime is 53053097. The reversal of 53053057 is 75035035.

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 29637136 + 23415921 = 5444^2 + 4839^2 .

It is a cyclic number.

It is not a de Polignac number, because 53053057 - 27 = 53052929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53053051) 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, 646948 + ... + 647029.

It is an arithmetic number, because the mean of its divisors is an integer number (13586769).

Almost surely, 253053057 is an apocalyptic number.

It is an amenable number.

53053057 is a deficient number, since it is larger than the sum of its proper divisors (1294019).

53053057 is a wasteful number, since it uses less digits than its factorization.

53053057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294018.

The product of its (nonzero) digits is 7875, while the sum is 28.

The square root of 53053057 is about 7283.7529474852. The cubic root of 53053057 is about 375.7538778035.

The spelling of 53053057 in words is "fifty-three million, fifty-three thousand, fifty-seven".

Divisors: 1 41 1293977 53053057