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557485 = 5111497
BaseRepresentation
bin10001000000110101101
31001022201121
42020012231
5120314420
615540541
74511215
oct2100655
91038647
10557485
11350935
1222a751
13166996
14107245
15b02aa
hex881ad

557485 has 4 divisors (see below), whose sum is σ = 668988. Its totient is φ = 445984.

The previous prime is 557483. The next prime is 557489. The reversal of 557485 is 584755.

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 381924 + 175561 = 618^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 557485 - 21 = 557483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 557485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557483) 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, 55744 + ... + 55753.

It is an arithmetic number, because the mean of its divisors is an integer number (167247).

2557485 is an apocalyptic number.

It is an amenable number.

557485 is a deficient number, since it is larger than the sum of its proper divisors (111503).

557485 is a wasteful number, since it uses less digits than its factorization.

557485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111502.

The product of its digits is 28000, while the sum is 34.

The square root of 557485 is about 746.6491813429. The cubic root of 557485 is about 82.3021275669.

The spelling of 557485 in words is "five hundred fifty-seven thousand, four hundred eighty-five".

Divisors: 1 5 111497 557485