551325401 has 16 divisors (see below), whose sum is σ = 620682048. Its totient is φ = 485356800.

The previous prime is 551325377. The next prime is 551325427. The reversal of 551325401 is 104523155.

551325401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551325401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551325491) 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, 57326 + ... + 66248.

It is an arithmetic number, because the mean of its divisors is an integer number (38792628).

Almost surely, 2^551325401 is an apocalyptic number.

It is an amenable number.

551325401 is a deficient number, since it is larger than the sum of its proper divisors (69356647).

551325401 is a wasteful number, since it uses less digits than its factorization.

551325401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9112.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 551325401 is about 23480.3194399054. The cubic root of 551325401 is about 819.9788815699.

Adding to 551325401 its reverse (104523155), we get a palindrome (655848556).

The spelling of 551325401 in words is "five hundred fifty-one million, three hundred twenty-five thousand, four hundred one".