1011404425 has 6 divisors (see below), whose sum is σ = 1254141518. Its totient is φ = 809123520.

The previous prime is 1011404423. The next prime is 1011404437. The reversal of 1011404425 is 5244041101.

It can be written as a sum of positive squares in 3 ways, for example, as 355216 + 1011049209 = 596^2 + 31797^2 .

It is not a de Polignac number, because 1011404425 - 2¹ = 1011404423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011404396 and 1011404405.

It is not an unprimeable number, because it can be changed into a prime (1011404423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20228064 + ... + 20228113.

Almost surely, 2^1011404425 is an apocalyptic number.

It is an amenable number.

1011404425 is a deficient number, since it is larger than the sum of its proper divisors (242737093).

1011404425 is an equidigital number, since it uses as much as digits as its factorization.

1011404425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40456187 (or 40456182 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1011404425 is about 31802.5851936600. The cubic root of 1011404425 is about 1003.7871146573.

Adding to 1011404425 its reverse (5244041101), we get a palindrome (6255445526).

The spelling of 1011404425 in words is "one billion, eleven million, four hundred four thousand, four hundred twenty-five".