1525450120 has 32 divisors (see below), whose sum is σ = 3634162200. Its totient is φ = 574286848.

The previous prime is 1525450109. The next prime is 1525450127. The reversal of 1525450120 is 210545251.

It can be written as a sum of positive squares in 4 ways, for example, as 1054820484 + 470629636 = 32478^2 + 21694^2 .

It is not an unprimeable number, because it can be changed into a prime (1525450127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120975 + ... + 1122334.

Almost surely, 2^1525450120 is an apocalyptic number.

1525450120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1525450120 is an abundant number, since it is smaller than the sum of its proper divisors (2108712080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1525450120 is a wasteful number, since it uses less digits than its factorization.

1525450120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243337 (or 2243333 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1525450120 is about 39057.0111503684. The cubic root of 1525450120 is about 1151.1519949597.

Adding to 1525450120 its reverse (210545251), we get a palindrome (1735995371).

The spelling of 1525450120 in words is "one billion, five hundred twenty-five million, four hundred fifty thousand, one hundred twenty".