1525404412241 has 4 divisors (see below), whose sum is σ = 1591726343232. Its totient is φ = 1459082481252.

The previous prime is 1525404412223. The next prime is 1525404412247. The reversal of 1525404412241 is 1422144045251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1525404412241 - 2⁶ = 1525404412177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1525404412247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33160965461 + ... + 33160965506.

It is an arithmetic number, because the mean of its divisors is an integer number (397931585808).

Almost surely, 2^{1525404412241} is an apocalyptic number.

It is an amenable number.

1525404412241 is a deficient number, since it is larger than the sum of its proper divisors (66321930991).

1525404412241 is an equidigital number, since it uses as much as digits as its factorization.

1525404412241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66321930990.

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 1525404412241 its reverse (1422144045251), we get a palindrome (2947548457492).

The spelling of 1525404412241 in words is "one trillion, five hundred twenty-five billion, four hundred four million, four hundred twelve thousand, two hundred forty-one".