1025556955 has 4 divisors (see below), whose sum is σ = 1230668352. Its totient is φ = 820445560.

The previous prime is 1025556947. The next prime is 1025556979. The reversal of 1025556955 is 5596555201.

1025556955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5596555201 = 23 ⋅243328487.

It is not a de Polignac number, because 1025556955 - 2³ = 1025556947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102555691 + ... + 102555700.

It is an arithmetic number, because the mean of its divisors is an integer number (307667088).

Almost surely, 2^1025556955 is an apocalyptic number.

1025556955 is a deficient number, since it is larger than the sum of its proper divisors (205111397).

1025556955 is an equidigital number, since it uses as much as digits as its factorization.

1025556955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205111396.

The product of its (nonzero) digits is 337500, while the sum is 43.

The square root of 1025556955 is about 32024.3181816569. The cubic root of 1025556955 is about 1008.4474250763.

The spelling of 1025556955 in words is "one billion, twenty-five million, five hundred fifty-six thousand, nine hundred fifty-five".