2011245550 has 12 divisors (see below), whose sum is σ = 3740916816. Its totient is φ = 804498200.

The previous prime is 2011245541. The next prime is 2011245563. The reversal of 2011245550 is 555421102.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 20112406 + ... + 20112505.

It is an arithmetic number, because the mean of its divisors is an integer number (311743068).

Almost surely, 2^2011245550 is an apocalyptic number.

2011245550 is a deficient number, since it is larger than the sum of its proper divisors (1729671266).

2011245550 is a wasteful number, since it uses less digits than its factorization.

2011245550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40224923 (or 40224918 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2011245550 is about 44846.9123797837. The cubic root of 2011245550 is about 1262.2780552894.

Adding to 2011245550 its reverse (555421102), we get a palindrome (2566666652).

The spelling of 2011245550 in words is "two billion, eleven million, two hundred forty-five thousand, five hundred fifty".