551424101 has 2 divisors, whose sum is σ = 551424102. Its totient is φ = 551424100.

The previous prime is 551424073. The next prime is 551424113. The reversal of 551424101 is 101424155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 459244900 + 92179201 = 21430^2 + 9601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551424101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551424151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275712050 + 275712051.

It is an arithmetic number, because the mean of its divisors is an integer number (275712051).

Almost surely, 2^551424101 is an apocalyptic number.

It is an amenable number.

551424101 is a deficient number, since it is larger than the sum of its proper divisors (1).

551424101 is an equidigital number, since it uses as much as digits as its factorization.

551424101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 551424101 is about 23482.4211060103. The cubic root of 551424101 is about 820.0278103794.

Adding to 551424101 its reverse (101424155), we get a palindrome (652848256).

The spelling of 551424101 in words is "five hundred fifty-one million, four hundred twenty-four thousand, one hundred one".