550007001 has 24 divisors (see below), whose sum is σ = 844126920. Its totient is φ = 343896576.

The previous prime is 550006993. The next prime is 550007009. The reversal of 550007001 is 100700055.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (550006993) and next prime (550007009).

It can be written as a sum of positive squares in 4 ways, for example, as 432848025 + 117158976 = 20805^2 + 10824^2 .

It is not a de Polignac number, because 550007001 - 2³ = 550006993 is a prime.

It is a super-2 number, since 2×550007001² = 605015402298028002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550007009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38695 + ... + 50963.

It is an arithmetic number, because the mean of its divisors is an integer number (35171955).

Almost surely, 2^550007001 is an apocalyptic number.

550007001 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

550007001 is a deficient number, since it is larger than the sum of its proper divisors (294119919).

550007001 is a wasteful number, since it uses less digits than its factorization.

550007001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12585 (or 12582 counting only the distinct ones).

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

The square root of 550007001 is about 23452.2280604637. The cubic root of 550007001 is about 819.3247469909.

Adding to 550007001 its reverse (100700055), we get a palindrome (650707056).

It can be divided in two parts, 55000 and 7001, that added together give a square (62001 = 249²).

The spelling of 550007001 in words is "five hundred fifty million, seven thousand, one".