1525004413 has 2 divisors, whose sum is σ = 1525004414. Its totient is φ = 1525004412.

The previous prime is 1525004381. The next prime is 1525004419. The reversal of 1525004413 is 3144005251.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1432016964 + 92987449 = 37842^2 + 9643^2 .

It is an emirp because it is prime and its reverse (3144005251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1525004413 - 2⁵ = 1525004381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525004419) 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, 762502206 + 762502207.

It is an arithmetic number, because the mean of its divisors is an integer number (762502207).

Almost surely, 2^1525004413 is an apocalyptic number.

It is an amenable number.

1525004413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525004413 is an equidigital number, since it uses as much as digits as its factorization.

1525004413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1525004413 is about 39051.3048821675. The cubic root of 1525004413 is about 1151.0398692612.

Adding to 1525004413 its reverse (3144005251), we get a palindrome (4669009664).

The spelling of 1525004413 in words is "one billion, five hundred twenty-five million, four thousand, four hundred thirteen".