404201405525551 has 2 divisors, whose sum is σ = 404201405525552. Its totient is φ = 404201405525550.

The previous prime is 404201405525531. The next prime is 404201405525569. The reversal of 404201405525551 is 155525504102404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404201405525551 - 2³¹ = 404199258041903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404201405525498 and 404201405525507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404201405525531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202100702762775 + 202100702762776.

It is an arithmetic number, because the mean of its divisors is an integer number (202100702762776).

Almost surely, 2^{404201405525551} is an apocalyptic number.

404201405525551 is a deficient number, since it is larger than the sum of its proper divisors (1).

404201405525551 is an equidigital number, since it uses as much as digits as its factorization.

404201405525551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800000, while the sum is 43.

Adding to 404201405525551 its reverse (155525504102404), we get a palindrome (559726909627955).

The spelling of 404201405525551 in words is "four hundred four trillion, two hundred one billion, four hundred five million, five hundred twenty-five thousand, five hundred fifty-one".