7550001 has 6 divisors (see below), whose sum is σ = 10905570. Its totient is φ = 5033328.

The previous prime is 7549999. The next prime is 7550017. The reversal of 7550001 is 1000557.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4223025 + 3326976 = 2055^2 + 1824^2 .

It is not a de Polignac number, because 7550001 - 2¹ = 7549999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7550071) 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 in 5 ways as a sum of consecutive naturals, for example, 419436 + ... + 419453.

It is an arithmetic number, because the mean of its divisors is an integer number (1817595).

Almost surely, 2^7550001 is an apocalyptic number.

It is an amenable number.

7550001 is a deficient number, since it is larger than the sum of its proper divisors (3355569).

7550001 is a wasteful number, since it uses less digits than its factorization.

7550001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838895 (or 838892 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 18.

The square root of 7550001 is about 2747.7265147754. The cubic root of 7550001 is about 196.1774129435.

Adding to 7550001 its reverse (1000557), we get a palindrome (8550558).

The spelling of 7550001 in words is "seven million, five hundred fifty thousand, one".