1025133505 has 24 divisors (see below), whose sum is σ = 1416369024. Its totient is φ = 706298400.

The previous prime is 1025133463. The next prime is 1025133517. The reversal of 1025133505 is 5053315201.

1025133505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1025133505 - 2⁷ = 1025133377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1025133505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5961 + ... + 45670.

It is an arithmetic number, because the mean of its divisors is an integer number (59015376).

Almost surely, 2^1025133505 is an apocalyptic number.

It is an amenable number.

1025133505 is a deficient number, since it is larger than the sum of its proper divisors (391235519).

1025133505 is a wasteful number, since it uses less digits than its factorization.

1025133505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51685 (or 51666 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 1025133505 is about 32017.7061170847. The cubic root of 1025133505 is about 1008.3086107971.

Adding to 1025133505 its reverse (5053315201), we get a palindrome (6078448706).

The spelling of 1025133505 in words is "one billion, twenty-five million, one hundred thirty-three thousand, five hundred five".