1000025465 has 16 divisors (see below), whose sum is σ = 1252507536. Its totient is φ = 765772800.

The previous prime is 1000025443. The next prime is 1000025483. The reversal of 1000025465 is 5645200001.

It can be written as a sum of positive squares in 8 ways, for example, as 37847104 + 962178361 = 6152^2 + 31019^2 .

It is not a de Polignac number, because 1000025465 - 2⁶ = 1000025401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000025465.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 35156 + ... + 56885.

It is an arithmetic number, because the mean of its divisors is an integer number (78281721).

Almost surely, 2^1000025465 is an apocalyptic number.

It is an amenable number.

1000025465 is a deficient number, since it is larger than the sum of its proper divisors (252482071).

1000025465 is an equidigital number, since it uses as much as digits as its factorization.

1000025465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92140.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1000025465 is about 31623.1792361236. The cubic root of 1000025465 is about 1000.0084882613.

Adding to 1000025465 its reverse (5645200001), we get a palindrome (6645225466).

The spelling of 1000025465 in words is "one billion, twenty-five thousand, four hundred sixty-five".