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554331557 = 13113377353
BaseRepresentation
bin100001000010100…
…110110110100101
31102122001221221102
4201002212312211
52113402102212
6131001125445
716510511663
oct4102466645
91378057842
10554331557
112649a655a
12135789885
138aac8c50
1453899c33
15339eb5c2
hex210a6da5

554331557 has 8 divisors (see below), whose sum is σ = 602256984. Its totient is φ = 507161088.

The previous prime is 554331551. The next prime is 554331587. The reversal of 554331557 is 755133455.

It can be written as a sum of positive squares in 4 ways, for example, as 17297281 + 537034276 = 4159^2 + 23174^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 554331557 - 214 = 554315173 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 554331557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554331551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187208 + ... + 190145.

It is an arithmetic number, because the mean of its divisors is an integer number (75282123).

Almost surely, 2554331557 is an apocalyptic number.

It is an amenable number.

554331557 is a deficient number, since it is larger than the sum of its proper divisors (47925427).

554331557 is a wasteful number, since it uses less digits than its factorization.

554331557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377479.

The product of its digits is 157500, while the sum is 38.

The square root of 554331557 is about 23544.2467919447. The cubic root of 554331557 is about 821.4665195193.

The spelling of 554331557 in words is "five hundred fifty-four million, three hundred thirty-one thousand, five hundred fifty-seven".

Divisors: 1 13 113 1469 377353 4905589 42640889 554331557