551012001 has 8 divisors (see below), whose sum is σ = 737336064. Its totient is φ = 366014640.

The previous prime is 551011999. The next prime is 551012003. The reversal of 551012001 is 100210155.

It is an interprime number because it is at equal distance from previous prime (551011999) and next prime (551012003).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551012001 - 2¹ = 551011999 is a prime.

It is a super-2 number, since 2×551012001² = 607228450492048002, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (551012003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330705 + ... + 332366.

It is an arithmetic number, because the mean of its divisors is an integer number (92167008).

Almost surely, 2^551012001 is an apocalyptic number.

It is an amenable number.

551012001 is a deficient number, since it is larger than the sum of its proper divisors (186324063).

551012001 is a wasteful number, since it uses less digits than its factorization.

551012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663351.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 551012001 is about 23473.6448171135. The cubic root of 551012001 is about 819.8234802468.

Adding to 551012001 its reverse (100210155), we get a palindrome (651222156).

The spelling of 551012001 in words is "five hundred fifty-one million, twelve thousand, one".