551500201 has 4 divisors (see below), whose sum is σ = 630285952. Its totient is φ = 472714452.

The previous prime is 551500189. The next prime is 551500237. The reversal of 551500201 is 102005155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 551500201 - 2²⁹ = 14629289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551503201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39392865 + ... + 39392878.

It is an arithmetic number, because the mean of its divisors is an integer number (157571488).

Almost surely, 2^551500201 is an apocalyptic number.

It is an amenable number.

551500201 is a deficient number, since it is larger than the sum of its proper divisors (78785751).

551500201 is an equidigital number, since it uses as much as digits as its factorization.

551500201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78785750.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 551500201 is about 23484.0414111371. The cubic root of 551500201 is about 820.0655316456.

Adding to 551500201 its reverse (102005155), we get a palindrome (653505356).

The spelling of 551500201 in words is "five hundred fifty-one million, five hundred thousand, two hundred one".