1545252425 has 24 divisors (see below), whose sum is σ = 2019364800. Its totient is φ = 1169743680.

The previous prime is 1545252413. The next prime is 1545252433. The reversal of 1545252425 is 5242525451.

It is not a de Polignac number, because 1545252425 - 2¹² = 1545248329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 582452 + ... + 585098.

It is an arithmetic number, because the mean of its divisors is an integer number (84140200).

Almost surely, 2^1545252425 is an apocalyptic number.

It is an amenable number.

1545252425 is a deficient number, since it is larger than the sum of its proper divisors (474112375).

1545252425 is a wasteful number, since it uses less digits than its factorization.

1545252425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905 (or 3900 counting only the distinct ones).

The product of its digits is 80000, while the sum is 35.

The square root of 1545252425 is about 39309.6988668191. The cubic root of 1545252425 is about 1156.1117397865. Note that the first 3 decimals are identical.

Adding to 1545252425 its reverse (5242525451), we get a palindrome (6787777876).

The spelling of 1545252425 in words is "one billion, five hundred forty-five million, two hundred fifty-two thousand, four hundred twenty-five".