1025208735 has 16 divisors (see below), whose sum is σ = 1648926720. Its totient is φ = 543913760.

The previous prime is 1025208727. The next prime is 1025208773. The reversal of 1025208735 is 5378025201.

It is not a de Polignac number, because 1025208735 - 2³ = 1025208727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025208696 and 1025208705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176055 + ... + 181784.

It is an arithmetic number, because the mean of its divisors is an integer number (103057920).

Almost surely, 2^1025208735 is an apocalyptic number.

1025208735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1025208735 is a deficient number, since it is larger than the sum of its proper divisors (623717985).

1025208735 is a wasteful number, since it uses less digits than its factorization.

1025208735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358038.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 1025208735 is about 32018.8809142356. The cubic root of 1025208735 is about 1008.3332752924. Note that the first 3 decimals are identical.

The spelling of 1025208735 in words is "one billion, twenty-five million, two hundred eight thousand, seven hundred thirty-five".