3125803530 has 16 divisors (see below), whose sum is σ = 7501928544. Its totient is φ = 833547600.

The previous prime is 3125803517. The next prime is 3125803537. The reversal of 3125803530 is 353085213.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 104193451 = 3125803530 / (3 + 1 + 2 + 5 + 8 + 0 + 3 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (3125803537) 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, 52096696 + ... + 52096755.

It is an arithmetic number, because the mean of its divisors is an integer number (468870534).

Almost surely, 2^3125803530 is an apocalyptic number.

3125803530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3125803530 is an abundant number, since it is smaller than the sum of its proper divisors (4376125014).

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

3125803530 is a wasteful number, since it uses less digits than its factorization.

3125803530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104193461.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 3125803530 is about 55908.8859663650. The cubic root of 3125803530 is about 1462.1341669530.

Adding to 3125803530 its reverse (353085213), we get a palindrome (3478888743).

The spelling of 3125803530 in words is "three billion, one hundred twenty-five million, eight hundred three thousand, five hundred thirty".