551520201 has 16 divisors (see below), whose sum is σ = 777096000. Its totient is φ = 346963968.

The previous prime is 551520199. The next prime is 551520217. The reversal of 551520201 is 102025155.

It is not a de Polignac number, because 551520201 - 2¹ = 551520199 is a prime.

It is a super-2 number, since 2×551520201² = 608349064222160802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551520241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4176 + ... + 33473.

It is an arithmetic number, because the mean of its divisors is an integer number (48568500).

Almost surely, 2^551520201 is an apocalyptic number.

It is an amenable number.

551520201 is a deficient number, since it is larger than the sum of its proper divisors (225575799).

551520201 is a wasteful number, since it uses less digits than its factorization.

551520201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37928.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 551520201 is about 23484.4672283618. The cubic root of 551520201 is about 820.0754446745.

Adding to 551520201 its reverse (102025155), we get a palindrome (653545356).

The spelling of 551520201 in words is "five hundred fifty-one million, five hundred twenty thousand, two hundred one".