1025864512 has 14 divisors (see below), whose sum is σ = 2035700018. Its totient is φ = 512932224.

The previous prime is 1025864503. The next prime is 1025864513. The reversal of 1025864512 is 2154685201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 794337856 + 231526656 = 28184^2 + 15216^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025864513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8014503 + ... + 8014630.

Almost surely, 2^1025864512 is an apocalyptic number.

It is an amenable number.

1025864512 is a deficient number, since it is larger than the sum of its proper divisors (1009835506).

1025864512 is an equidigital number, since it uses as much as digits as its factorization.

1025864512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16029145 (or 16029135 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 1025864512 is about 32029.1197506269. The cubic root of 1025864512 is about 1008.5482236600.

The spelling of 1025864512 in words is "one billion, twenty-five million, eight hundred sixty-four thousand, five hundred twelve".