1525404412223 has 2 divisors, whose sum is σ = 1525404412224. Its totient is φ = 1525404412222.

The previous prime is 1525404412201. The next prime is 1525404412247. The reversal of 1525404412223 is 3222144045251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1525404412223 - 2²⁴ = 1525387635007 is a prime.

It is a super-2 number, since 2×1525404412223² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525404112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762702206111 + 762702206112.

It is an arithmetic number, because the mean of its divisors is an integer number (762702206112).

Almost surely, 2^{1525404412223} is an apocalyptic number.

1525404412223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525404412223 is an equidigital number, since it uses as much as digits as its factorization.

1525404412223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 1525404412223 its reverse (3222144045251), we get a palindrome (4747548457474).

The spelling of 1525404412223 in words is "one trillion, five hundred twenty-five billion, four hundred four million, four hundred twelve thousand, two hundred twenty-three".