1025720075 has 24 divisors (see below), whose sum is σ = 1405276128. Its totient is φ = 738721280.

The previous prime is 1025720021. The next prime is 1025720099. The reversal of 1025720075 is 5700275201.

It is not a de Polignac number, because 1025720075 - 2⁶ = 1025720011 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 42692 + ... + 62241.

It is an arithmetic number, because the mean of its divisors is an integer number (58553172).

Almost surely, 2^1025720075 is an apocalyptic number.

1025720075 is a deficient number, since it is larger than the sum of its proper divisors (379556053).

1025720075 is a wasteful number, since it uses less digits than its factorization.

1025720075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104983 (or 104978 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 1025720075 is about 32026.8648949597. The cubic root of 1025720075 is about 1008.5008884563.

Adding to 1025720075 its reverse (5700275201), we get a palindrome (6725995276).

The spelling of 1025720075 in words is "one billion, twenty-five million, seven hundred twenty thousand, seventy-five".