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557231053 = 4561122173
BaseRepresentation
bin100001001101101…
…010101111001101
31102211112021022011
4201031222233031
52120122343203
6131143221221
716544246221
oct4115525715
91384467264
10557231053
112665a6a35
12136747811
138b5a2922
1454012781
1533dc076d
hex2136abcd

557231053 has 4 divisors (see below), whose sum is σ = 557357788. Its totient is φ = 557104320.

The previous prime is 557231021. The next prime is 557231093. The reversal of 557231053 is 350132755.

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 380952324 + 176278729 = 19518^2 + 13277^2 .

It is a cyclic number.

It is not a de Polignac number, because 557231053 - 25 = 557231021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557231093) 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, 56526 + ... + 65647.

It is an arithmetic number, because the mean of its divisors is an integer number (139339447).

Almost surely, 2557231053 is an apocalyptic number.

It is an amenable number.

557231053 is a deficient number, since it is larger than the sum of its proper divisors (126735).

557231053 is a wasteful number, since it uses less digits than its factorization.

557231053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126734.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 557231053 is about 23605.7419497884. The cubic root of 557231053 is about 822.8962884331.

The spelling of 557231053 in words is "five hundred fifty-seven million, two hundred thirty-one thousand, fifty-three".

Divisors: 1 4561 122173 557231053