1525605452 has 24 divisors (see below), whose sum is σ = 3052084896. Its totient is φ = 653643648.

The previous prime is 1525605451. The next prime is 1525605469. The reversal of 1525605452 is 2545065251.

It is not an unprimeable number, because it can be changed into a prime (1525605451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142478 + ... + 152810.

It is an arithmetic number, because the mean of its divisors is an integer number (127170204).

Almost surely, 2^1525605452 is an apocalyptic number.

It is an amenable number.

1525605452 is an abundant number, since it is smaller than the sum of its proper divisors (1526479444).

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

1525605452 is a wasteful number, since it uses less digits than its factorization.

1525605452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15617 (or 15615 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 1525605452 is about 39058.9996287667. Note that the first 3 decimals coincide. The cubic root of 1525605452 is about 1151.1910664159.

The spelling of 1525605452 in words is "one billion, five hundred twenty-five million, six hundred five thousand, four hundred fifty-two".