1525530425 has 24 divisors (see below), whose sum is σ = 2010615360. Its totient is φ = 1144929600.

The previous prime is 1525530329. The next prime is 1525530431. The reversal of 1525530425 is 5240355251.

It is not a de Polignac number, because 1525530425 - 2²⁴ = 1508753209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1525530391 and 1525530400.

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, 33335 + ... + 64515.

It is an arithmetic number, because the mean of its divisors is an integer number (83775640).

Almost surely, 2^1525530425 is an apocalyptic number.

It is an amenable number.

1525530425 is a deficient number, since it is larger than the sum of its proper divisors (485084935).

1525530425 is a wasteful number, since it uses less digits than its factorization.

1525530425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31313 (or 31308 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 1525530425 is about 39058.0391852945. The cubic root of 1525530425 is about 1151.1721948202.

Adding to 1525530425 its reverse (5240355251), we get a palindrome (6765885676).

The spelling of 1525530425 in words is "one billion, five hundred twenty-five million, five hundred thirty thousand, four hundred twenty-five".