1025589955 has 16 divisors (see below), whose sum is σ = 1334924640. Its totient is φ = 751903488.

The previous prime is 1025589953. The next prime is 1025589967. The reversal of 1025589955 is 5599855201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1025589955 - 2¹ = 1025589953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025589899 and 1025589908.

It is not an unprimeable number, because it can be changed into a prime (1025589953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47722 + ... + 65791.

It is an arithmetic number, because the mean of its divisors is an integer number (83432790).

Almost surely, 2^1025589955 is an apocalyptic number.

1025589955 is a deficient number, since it is larger than the sum of its proper divisors (309334685).

1025589955 is a wasteful number, since it uses less digits than its factorization.

1025589955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113670.

The product of its (nonzero) digits is 810000, while the sum is 49.

The square root of 1025589955 is about 32024.8334109641. The cubic root of 1025589955 is about 1008.4582414456.

The spelling of 1025589955 in words is "one billion, twenty-five million, five hundred eighty-nine thousand, nine hundred fifty-five".