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13957553 is a prime number
BaseRepresentation
bin110101001111…
…100110110001
3222021010011102
4311033212301
512033120203
61215054145
7226431401
oct65174661
928233142
1013957553
117973575
124811355
132b7900c
141bd4801
15135a888
hexd4f9b1

13957553 has 2 divisors, whose sum is σ = 13957554. Its totient is φ = 13957552.

The previous prime is 13957523. The next prime is 13957577. The reversal of 13957553 is 35575931.

13957553 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12439729 + 1517824 = 3527^2 + 1232^2 .

It is an emirp because it is prime and its reverse (35575931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13957553 - 216 = 13892017 is a prime.

It is not a weakly prime, because it can be changed into another prime (13957513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6978776 + 6978777.

It is an arithmetic number, because the mean of its divisors is an integer number (6978777).

Almost surely, 213957553 is an apocalyptic number.

It is an amenable number.

13957553 is a deficient number, since it is larger than the sum of its proper divisors (1).

13957553 is an equidigital number, since it uses as much as digits as its factorization.

13957553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70875, while the sum is 38.

The square root of 13957553 is about 3735.9808618353. The cubic root of 13957553 is about 240.7704005239.

The spelling of 13957553 in words is "thirteen million, nine hundred fifty-seven thousand, five hundred fifty-three".