1025857755 has 24 divisors (see below), whose sum is σ = 1914935568. Its totient is φ = 505037376.

The previous prime is 1025857733. The next prime is 1025857783. The reversal of 1025857755 is 5577585201.

1025857755 is a `hidden beast` number, since 1 + 0 + 25 + 8 + 577 + 55 = 666.

It is not a de Polignac number, because 1025857755 - 2⁶ = 1025857691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1025857755.

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, 876217 + ... + 877386.

It is an arithmetic number, because the mean of its divisors is an integer number (79788982).

Almost surely, 2^1025857755 is an apocalyptic number.

1025857755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025857755 is a deficient number, since it is larger than the sum of its proper divisors (889077813).

1025857755 is a wasteful number, since it uses less digits than its factorization.

1025857755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753627 (or 1753624 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 45.

The square root of 1025857755 is about 32029.0142683162. The cubic root of 1025857755 is about 1008.5460093405.

The spelling of 1025857755 in words is "one billion, twenty-five million, eight hundred fifty-seven thousand, seven hundred fifty-five".