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5757721 is a prime number
BaseRepresentation
bin10101111101101100011001
3101211112002221
4111331230121
52433221341
6323224041
766640234
oct25755431
911745087
105757721
113282952
121b18021
131267948
14a9c41b
1578aed1
hex57db19

5757721 has 2 divisors, whose sum is σ = 5757722. Its totient is φ = 5757720.

The previous prime is 5757701. The next prime is 5757727. The reversal of 5757721 is 1277575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5125696 + 632025 = 2264^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 5757721 - 27 = 5757593 is a prime.

It is a super-2 number, since 2×57577212 = 66302702227682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5757727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2878860 + 2878861.

It is an arithmetic number, because the mean of its divisors is an integer number (2878861).

Almost surely, 25757721 is an apocalyptic number.

It is an amenable number.

5757721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5757721 is an equidigital number, since it uses as much as digits as its factorization.

5757721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17150, while the sum is 34.

The square root of 5757721 is about 2399.5251613601. The cubic root of 5757721 is about 179.2325452588.

The spelling of 5757721 in words is "five million, seven hundred fifty-seven thousand, seven hundred twenty-one".