1025702305 has 16 divisors (see below), whose sum is σ = 1287608400. Its totient is φ = 783354880.

The previous prime is 1025702303. The next prime is 1025702311. The reversal of 1025702305 is 5032075201.

It can be written as a sum of positive squares in 8 ways, for example, as 52823824 + 972878481 = 7268^2 + 31191^2 .

It is not a de Polignac number, because 1025702305 - 2¹ = 1025702303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025702305.

It is not an unprimeable number, because it can be changed into a prime (1025702303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26836 + ... + 52645.

It is an arithmetic number, because the mean of its divisors is an integer number (80475525).

Almost surely, 2^1025702305 is an apocalyptic number.

It is an amenable number.

1025702305 is a deficient number, since it is larger than the sum of its proper divisors (261906095).

1025702305 is an equidigital number, since it uses as much as digits as its factorization.

1025702305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79604.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 1025702305 is about 32026.5874704128. The cubic root of 1025702305 is about 1008.4950645267.

Adding to 1025702305 its reverse (5032075201), we get a palindrome (6057777506).

The spelling of 1025702305 in words is "one billion, twenty-five million, seven hundred two thousand, three hundred five".