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554025421 = 28310871801
BaseRepresentation
bin100001000001011…
…100000111001101
31102121111102000001
4201001130013031
52113312303141
6130550404301
716505065315
oct4101340715
91377442001
10554025421
11264807554
12135660691
138aa1c7c1
145381a445
153398aa31
hex2105c1cd

554025421 has 8 divisors (see below), whose sum is σ = 556803584. Its totient is φ = 551253600.

The previous prime is 554025419. The next prime is 554025469. The reversal of 554025421 is 124520455.

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 554025421 - 21 = 554025419 is a prime.

It is a super-2 number, since 2×5540254212 = 613888334228454482, which contains 22 as substring.

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 554025421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554028421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306721 + ... + 308521.

It is an arithmetic number, because the mean of its divisors is an integer number (69600448).

Almost surely, 2554025421 is an apocalyptic number.

It is an amenable number.

554025421 is a deficient number, since it is larger than the sum of its proper divisors (2778163).

554025421 is a wasteful number, since it uses less digits than its factorization.

554025421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 554025421 is about 23537.7446030838. The cubic root of 554025421 is about 821.3152702175.

Adding to 554025421 its reverse (124520455), we get a palindrome (678545876).

The spelling of 554025421 in words is "five hundred fifty-four million, twenty-five thousand, four hundred twenty-one".

Divisors: 1 283 1087 1801 307621 509683 1957687 554025421