1025780351 has 8 divisors (see below), whose sum is σ = 1050110160. Its totient is φ = 1001472192.

The previous prime is 1025780339. The next prime is 1025780369. The reversal of 1025780351 is 1530875201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025780351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025780321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 129851 + ... + 137523.

It is an arithmetic number, because the mean of its divisors is an integer number (131263770).

Almost surely, 2^1025780351 is an apocalyptic number.

1025780351 is a deficient number, since it is larger than the sum of its proper divisors (24329809).

1025780351 is an equidigital number, since it uses as much as digits as its factorization.

1025780351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10825.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1025780351 is about 32027.8059036207. The cubic root of 1025780351 is about 1008.5206427766.

The spelling of 1025780351 in words is "one billion, twenty-five million, seven hundred eighty thousand, three hundred fifty-one".