2011444525 has 6 divisors (see below), whose sum is σ = 2494191242. Its totient is φ = 1609155600.

The previous prime is 2011444489. The next prime is 2011444537. The reversal of 2011444525 is 5254441102.

It can be written as a sum of positive squares in 3 ways, for example, as 156075049 + 1855369476 = 12493^2 + 43074^2 .

It is not a de Polignac number, because 2011444525 - 2⁹ = 2011444013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011444493 and 2011444502.

It is a congruent number.

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, 40228866 + ... + 40228915.

Almost surely, 2^2011444525 is an apocalyptic number.

2011444525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2011444525 is a deficient number, since it is larger than the sum of its proper divisors (482746717).

2011444525 is an equidigital number, since it uses as much as digits as its factorization.

2011444525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80457791 (or 80457786 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 2011444525 is about 44849.1307050650. The cubic root of 2011444525 is about 1262.3196801578.

Adding to 2011444525 its reverse (5254441102), we get a palindrome (7265885627).

The spelling of 2011444525 in words is "two billion, eleven million, four hundred forty-four thousand, five hundred twenty-five".