1525314523 has 2 divisors, whose sum is σ = 1525314524. Its totient is φ = 1525314522.

The previous prime is 1525314521. The next prime is 1525314559. The reversal of 1525314523 is 3254135251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1525314523 - 2¹ = 1525314521 is a prime.

Together with 1525314521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1525314521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762657261 + 762657262.

It is an arithmetic number, because the mean of its divisors is an integer number (762657262).

Almost surely, 2^1525314523 is an apocalyptic number.

1525314523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525314523 is an equidigital number, since it uses as much as digits as its factorization.

1525314523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 31.

The square root of 1525314523 is about 39055.2752262739. The cubic root of 1525314523 is about 1151.1178853811.

Adding to 1525314523 its reverse (3254135251), we get a palindrome (4779449774).

The spelling of 1525314523 in words is "one billion, five hundred twenty-five million, three hundred fourteen thousand, five hundred twenty-three".