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554200021 = 1676734931
BaseRepresentation
bin100001000010000…
…110101111010101
31102121211021111201
4201002012233111
52113333400041
6130554232501
716506423334
oct4102065725
91377737451
10554200021
11264916751
12135725731
138aa8110b
1453863d1b
15339c2631
hex21086bd5

554200021 has 8 divisors (see below), whose sum is σ = 558460224. Its totient is φ = 549951360.

The previous prime is 554200007. The next prime is 554200033. The reversal of 554200021 is 120002455.

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 554200021 - 227 = 419982293 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 (554200421) 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, 109926 + ... + 114856.

It is an arithmetic number, because the mean of its divisors is an integer number (69807528).

Almost surely, 2554200021 is an apocalyptic number.

It is an amenable number.

554200021 is a deficient number, since it is larger than the sum of its proper divisors (4260203).

554200021 is a wasteful number, since it uses less digits than its factorization.

554200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5771.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 554200021 is about 23541.4532474102. The cubic root of 554200021 is about 821.4015397755.

Adding to 554200021 its reverse (120002455), we get a palindrome (674202476).

The spelling of 554200021 in words is "five hundred fifty-four million, two hundred thousand, twenty-one".

Divisors: 1 167 673 4931 112391 823477 3318563 554200021