1525202225 has 12 divisors (see below), whose sum is σ = 1892140800. Its totient is φ = 1219587600.

The previous prime is 1525202207. The next prime is 1525202279. The reversal of 1525202225 is 5222025251.

It is not a de Polignac number, because 1525202225 - 2⁸ = 1525201969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1525202194 and 1525202203.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 44576 + ... + 70974.

It is an arithmetic number, because the mean of its divisors is an integer number (157678400).

Almost surely, 2^1525202225 is an apocalyptic number.

It is an amenable number.

1525202225 is a deficient number, since it is larger than the sum of its proper divisors (366938575).

1525202225 is a wasteful number, since it uses less digits than its factorization.

1525202225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28720 (or 28715 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 1525202225 is about 39053.8375195063. The cubic root of 1525202225 is about 1151.0896351619.

Adding to 1525202225 its reverse (5222025251), we get a palindrome (6747227476).

The spelling of 1525202225 in words is "one billion, five hundred twenty-five million, two hundred two thousand, two hundred twenty-five".