1025864511 has 64 divisors (see below), whose sum is σ = 1691796480. Its totient is φ = 539965440.

The previous prime is 1025864503. The next prime is 1025864513. The reversal of 1025864511 is 1154685201.

It is not a de Polignac number, because 1025864511 - 2³ = 1025864503 is a prime.

It is a super-3 number, since 3×1025864511³ (a number of 28 digits) contains 333 as substring.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2750121 + ... + 2750493.

It is an arithmetic number, because the mean of its divisors is an integer number (26434320).

Almost surely, 2^1025864511 is an apocalyptic number.

1025864511 is a deficient number, since it is larger than the sum of its proper divisors (665931969).

1025864511 is a wasteful number, since it uses less digits than its factorization.

1025864511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 1025864511 is about 32029.1197350161. The cubic root of 1025864511 is about 1008.5482233323.

The spelling of 1025864511 in words is "one billion, twenty-five million, eight hundred sixty-four thousand, five hundred eleven".