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553258091 = 4391260269
BaseRepresentation
bin100000111110100…
…000110001101011
31102120001102102102
4200332200301223
52113113224331
6130522124015
716465421231
oct4076406153
91376042372
10553258091
11264332aa1
1213535060b
138a811469
145369a951
15338884cb
hex20fa0c6b

553258091 has 4 divisors (see below), whose sum is σ = 554518800. Its totient is φ = 551997384.

The previous prime is 553258073. The next prime is 553258099. The reversal of 553258091 is 190852355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190852355 = 538170471.

It is a cyclic number.

It is not a de Polignac number, because 553258091 - 222 = 549063787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553258099) 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, 629696 + ... + 630573.

It is an arithmetic number, because the mean of its divisors is an integer number (138629700).

Almost surely, 2553258091 is an apocalyptic number.

553258091 is a deficient number, since it is larger than the sum of its proper divisors (1260709).

553258091 is a wasteful number, since it uses less digits than its factorization.

553258091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260708.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 553258091 is about 23521.4389653354. The cubic root of 553258091 is about 820.9359187775.

The spelling of 553258091 in words is "five hundred fifty-three million, two hundred fifty-eight thousand, ninety-one".

Divisors: 1 439 1260269 553258091