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7052557481 is a prime number
BaseRepresentation
bin1101001000101110…
…10111110010101001
3200012111122001002122
412210113113302221
5103420423314411
63123452441025
7336524515034
oct64427276251
920174561078
107052557481
112a99a91902
121449a79175
13885178448
144ac91c01b
152b424b9db
hex1a45d7ca9

7052557481 has 2 divisors, whose sum is σ = 7052557482. Its totient is φ = 7052557480.

The previous prime is 7052557451. The next prime is 7052557493. The reversal of 7052557481 is 1847552507.

7052557481 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., 6898797481 + 153760000 = 83059^2 + 12400^2 .

It is a cyclic number.

It is not a de Polignac number, because 7052557481 - 210 = 7052556457 is a prime.

It is a super-2 number, since 2×70525574812 = 99477134045618130722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7052557451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3526278740 + 3526278741.

It is an arithmetic number, because the mean of its divisors is an integer number (3526278741).

Almost surely, 27052557481 is an apocalyptic number.

It is an amenable number.

7052557481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7052557481 is an equidigital number, since it uses as much as digits as its factorization.

7052557481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392000, while the sum is 44.

The square root of 7052557481 is about 83979.5063155291. The cubic root of 7052557481 is about 1917.7068145027.

The spelling of 7052557481 in words is "seven billion, fifty-two million, five hundred fifty-seven thousand, four hundred eighty-one".