1530204225 has 24 divisors (see below), whose sum is σ = 2759933472. Its totient is φ = 741916800.

The previous prime is 1530204209. The next prime is 1530204229. The reversal of 1530204225 is 5224020351.

It is not a de Polignac number, because 1530204225 - 2⁴ = 1530204209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1530204195 and 1530204204.

It is not an unprimeable number, because it can be changed into a prime (1530204229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 926572 + ... + 928221.

It is an arithmetic number, because the mean of its divisors is an integer number (114997228).

Almost surely, 2^1530204225 is an apocalyptic number.

1530204225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530204225 is a deficient number, since it is larger than the sum of its proper divisors (1229729247).

1530204225 is a wasteful number, since it uses less digits than its factorization.

1530204225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854817 (or 1854812 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1530204225 is about 39117.8249011879. The cubic root of 1530204225 is about 1152.3466198419.

Adding to 1530204225 its reverse (5224020351), we get a palindrome (6754224576).

The spelling of 1530204225 in words is "one billion, five hundred thirty million, two hundred four thousand, two hundred twenty-five".