1025720283 has 24 divisors (see below), whose sum is σ = 1608809040. Its totient is φ = 579532800.

The previous prime is 1025720261. The next prime is 1025720359. The reversal of 1025720283 is 3820275201.

It is not a de Polignac number, because 1025720283 - 2¹² = 1025716187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025720283.

It is not an unprimeable number, because it can be changed into a prime (1025720203) 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, 26118 + ... + 52283.

It is an arithmetic number, because the mean of its divisors is an integer number (67033710).

Almost surely, 2^1025720283 is an apocalyptic number.

1025720283 is a deficient number, since it is larger than the sum of its proper divisors (583088757).

1025720283 is an equidigital number, since it uses as much as digits as its factorization.

1025720283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78507 (or 78500 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1025720283 is about 32026.8681422333. The cubic root of 1025720283 is about 1008.5009566257.

Adding to 1025720283 its reverse (3820275201), we get a palindrome (4845995484).

The spelling of 1025720283 in words is "one billion, twenty-five million, seven hundred twenty thousand, two hundred eighty-three".