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425553001 = 2549166949
BaseRepresentation
bin11001010111010…
…110110001101001
31002122202022222021
4121113112301221
51332420144001
6110121024441
713355066206
oct3127266151
91078668867
10425553001
111a92392a5
12ba625121
136a21a413
1440736cad
152755eba1
hex195d6c69

425553001 has 4 divisors (see below), whose sum is σ = 425722500. Its totient is φ = 425383504.

The previous prime is 425552999. The next prime is 425553031. The reversal of 425553001 is 100355524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 327067225 + 98485776 = 18085^2 + 9924^2 .

It is a cyclic number.

It is not a de Polignac number, because 425553001 - 21 = 425552999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425553031) 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, 80926 + ... + 86023.

It is an arithmetic number, because the mean of its divisors is an integer number (106430625).

Almost surely, 2425553001 is an apocalyptic number.

It is an amenable number.

425553001 is a deficient number, since it is larger than the sum of its proper divisors (169499).

425553001 is a wasteful number, since it uses less digits than its factorization.

425553001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169498.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 425553001 is about 20628.9360123105. The cubic root of 425553001 is about 752.1732526959.

The spelling of 425553001 in words is "four hundred twenty-five million, five hundred fifty-three thousand, one".

Divisors: 1 2549 166949 425553001