1025771823 has 16 divisors (see below), whose sum is σ = 1609054560. Its totient is φ = 643621248.

The previous prime is 1025771819. The next prime is 1025771833. The reversal of 1025771823 is 3281775201.

1025771823 is a `hidden beast` number, since 1 + 0 + 2 + 577 + 1 + 82 + 3 = 666.

1025771823 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 1025771823 - 2² = 1025771819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025771833) 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, 1116940 + ... + 1117857.

It is an arithmetic number, because the mean of its divisors is an integer number (100565910).

Almost surely, 2^1025771823 is an apocalyptic number.

1025771823 is a deficient number, since it is larger than the sum of its proper divisors (583282737).

1025771823 is a wasteful number, since it uses less digits than its factorization.

1025771823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234823 (or 2234817 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 1025771823 is about 32027.6727690290. The cubic root of 1025771823 is about 1008.5178479327.

The spelling of 1025771823 in words is "one billion, twenty-five million, seven hundred seventy-one thousand, eight hundred twenty-three".