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551254001 = 2332419817
BaseRepresentation
bin100000110110110…
…111011111110001
31102102021121022212
4200312313133301
52112110112001
6130411141505
716442403344
oct4066673761
91372247285
10551254001
11263194321
12134744895
138a28c1cc
14532d845b
15335de7bb
hex20db77f1

551254001 has 8 divisors (see below), whose sum is σ = 555973704. Its totient is φ = 546554880.

The previous prime is 551253991. The next prime is 551254003. The reversal of 551254001 is 100452155.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 238671601 + 312582400 = 15449^2 + 17680^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-551254001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551254003) 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, 51245 + ... + 61061.

It is an arithmetic number, because the mean of its divisors is an integer number (69496713).

Almost surely, 2551254001 is an apocalyptic number.

It is an amenable number.

551254001 is a deficient number, since it is larger than the sum of its proper divisors (4719703).

551254001 is a wasteful number, since it uses less digits than its factorization.

551254001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10291.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 551254001 is about 23478.7989684311. The cubic root of 551254001 is about 819.9434826207.

The spelling of 551254001 in words is "five hundred fifty-one million, two hundred fifty-four thousand, one".

Divisors: 1 233 241 9817 56153 2287361 2365897 551254001