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75022501 is a prime number
BaseRepresentation
bin1000111100011…
…00000010100101
312020011112112011
410132030002211
5123201210001
611235554221
71600452331
oct436140245
9166145464
1075022501
1139391574
122115b971
1312709918
149d6c7c1
1568bdd51
hex478c0a5

75022501 has 2 divisors, whose sum is σ = 75022502. Its totient is φ = 75022500.

The previous prime is 75022477. The next prime is 75022523. The reversal of 75022501 is 10522057.

It is an a-pointer prime, because the next prime (75022523) can be obtained adding 75022501 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66814276 + 8208225 = 8174^2 + 2865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-75022501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75022531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37511250 + 37511251.

It is an arithmetic number, because the mean of its divisors is an integer number (37511251).

Almost surely, 275022501 is an apocalyptic number.

It is an amenable number.

75022501 is a deficient number, since it is larger than the sum of its proper divisors (1).

75022501 is an equidigital number, since it uses as much as digits as its factorization.

75022501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 75022501 is about 8661.5530362632. The cubic root of 75022501 is about 421.7585019416.

Adding to 75022501 its reverse (10522057), we get a palindrome (85544558).

The spelling of 75022501 in words is "seventy-five million, twenty-two thousand, five hundred one".