1025655261 has 8 divisors (see below), whose sum is σ = 1426998720. Its totient is φ = 654040992.

The previous prime is 1025655259. The next prime is 1025655263. The reversal of 1025655261 is 1625565201.

1025655261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1025655259) and next prime (1025655263).

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

It is not a de Polignac number, because 1025655261 - 2¹ = 1025655259 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025655263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7432216 + ... + 7432353.

It is an arithmetic number, because the mean of its divisors is an integer number (178374840).

Almost surely, 2^1025655261 is an apocalyptic number.

It is an amenable number.

1025655261 is a deficient number, since it is larger than the sum of its proper divisors (401343459).

1025655261 is a wasteful number, since it uses less digits than its factorization.

1025655261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14864595.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 1025655261 is about 32025.8530097170. The cubic root of 1025655261 is about 1008.4796460286.

The spelling of 1025655261 in words is "one billion, twenty-five million, six hundred fifty-five thousand, two hundred sixty-one".