1011055025 has 12 divisors (see below), whose sum is σ = 1327456332. Its totient is φ = 761264640.

The previous prime is 1011054973. The next prime is 1011055033. The reversal of 1011055025 is 5205501101.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 323761 + 1010731264 = 569^2 + 31792^2 .

It is not a de Polignac number, because 1011055025 - 2¹⁰ = 1011054001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011054988 and 1011055006.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1189052 + ... + 1189901.

It is an arithmetic number, because the mean of its divisors is an integer number (110621361).

Almost surely, 2^1011055025 is an apocalyptic number.

It is an amenable number.

1011055025 is a deficient number, since it is larger than the sum of its proper divisors (316401307).

1011055025 is a wasteful number, since it uses less digits than its factorization.

1011055025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378980 (or 2378975 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 1011055025 is about 31797.0914550372. The cubic root of 1011055025 is about 1003.6715118368.

Adding to 1011055025 its reverse (5205501101), we get a palindrome (6216556126).

The spelling of 1011055025 in words is "one billion, eleven million, fifty-five thousand, twenty-five".