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2015225453 is a prime number
BaseRepresentation
bin111100000011101…
…1110011001101101
312012110000001121202
41320013132121231
513111344203303
6531545135245
7100640063603
oct17007363155
95173001552
102015225453
119445a678a
12482a8a525
132616784c7
141518dd873
15bbdbdc88
hex781de66d

2015225453 has 2 divisors, whose sum is σ = 2015225454. Its totient is φ = 2015225452.

The previous prime is 2015225411. The next prime is 2015225489. The reversal of 2015225453 is 3545225102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1671419689 + 343805764 = 40883^2 + 18542^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015225453 - 212 = 2015221357 is a prime.

It is a super-2 number, since 2×20152254532 = 8122267252838110418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015222453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007612726 + 1007612727.

It is an arithmetic number, because the mean of its divisors is an integer number (1007612727).

Almost surely, 22015225453 is an apocalyptic number.

It is an amenable number.

2015225453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015225453 is an equidigital number, since it uses as much as digits as its factorization.

2015225453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2015225453 is about 44891.2625462907. The cubic root of 2015225453 is about 1263.1101158258.

The spelling of 2015225453 in words is "two billion, fifteen million, two hundred twenty-five thousand, four hundred fifty-three".