551501601 has 8 divisors (see below), whose sum is σ = 840383424. Its totient is φ = 315143760.

The previous prime is 551501569. The next prime is 551501603. The reversal of 551501601 is 106105155.

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

It is not a de Polignac number, because 551501601 - 2⁵ = 551501569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551501603) 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, 13130970 + ... + 13131011.

It is an arithmetic number, because the mean of its divisors is an integer number (105047928).

Almost surely, 2^551501601 is an apocalyptic number.

It is an amenable number.

551501601 is a deficient number, since it is larger than the sum of its proper divisors (288881823).

551501601 is a wasteful number, since it uses less digits than its factorization.

551501601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26261991.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 551501601 is about 23484.0712185941. The cubic root of 551501601 is about 820.0662255654.

Adding to 551501601 its reverse (106105155), we get a palindrome (657606756).

The spelling of 551501601 in words is "five hundred fifty-one million, five hundred one thousand, six hundred one".