1025113566 has 16 divisors (see below), whose sum is σ = 2170828944. Its totient is φ = 321604224.

The previous prime is 1025113561. The next prime is 1025113589. The reversal of 1025113566 is 6653115201.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025113561) 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, 5024965 + ... + 5025168.

It is an arithmetic number, because the mean of its divisors is an integer number (135676809).

Almost surely, 2^1025113566 is an apocalyptic number.

1025113566 is an abundant number, since it is smaller than the sum of its proper divisors (1145715378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1025113566 is a wasteful number, since it uses less digits than its factorization.

1025113566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050155.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1025113566 is about 32017.3947409842. The cubic root of 1025113566 is about 1008.3020735037.

Adding to 1025113566 its reverse (6653115201), we get a palindrome (7678228767).

The spelling of 1025113566 in words is "one billion, twenty-five million, one hundred thirteen thousand, five hundred sixty-six".