1011235025 has 6 divisors (see below), whose sum is σ = 1253931462. Its totient is φ = 808988000.

The previous prime is 1011235007. The next prime is 1011235031. The reversal of 1011235025 is 5205321101.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 40538689 + 970696336 = 6367^2 + 31156^2 .

It is not a de Polignac number, because 1011235025 - 2²⁴ = 994457809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011234988 and 1011235006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20224676 + ... + 20224725.

It is an arithmetic number, because the mean of its divisors is an integer number (208988577).

Almost surely, 2^1011235025 is an apocalyptic number.

It is an amenable number.

1011235025 is a deficient number, since it is larger than the sum of its proper divisors (242696437).

1011235025 is an equidigital number, since it uses as much as digits as its factorization.

1011235025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40449411 (or 40449406 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1011235025 is about 31799.9217766334. The cubic root of 1011235025 is about 1003.7310701357.

Adding to 1011235025 its reverse (5205321101), we get a palindrome (6216556126).

The spelling of 1011235025 in words is "one billion, eleven million, two hundred thirty-five thousand, twenty-five".