2011525420 has 24 divisors (see below), whose sum is σ = 4225214448. Its totient is φ = 804417600.

The previous prime is 2011525343. The next prime is 2011525457. The reversal of 2011525420 is 245251102.

It is a junction number, because it is equal to n+sod(n) for n = 2011525391 and 2011525400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98275 + ... + 116965.

It is an arithmetic number, because the mean of its divisors is an integer number (176050602).

Almost surely, 2^2011525420 is an apocalyptic number.

2011525420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011525420 is an abundant number, since it is smaller than the sum of its proper divisors (2213689028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011525420 is a wasteful number, since it uses less digits than its factorization.

2011525420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24081 (or 24079 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2011525420 is about 44850.0325529425. The cubic root of 2011525420 is about 1262.3366023216.

Adding to 2011525420 its reverse (245251102), we get a palindrome (2256776522).

The spelling of 2011525420 in words is "two billion, eleven million, five hundred twenty-five thousand, four hundred twenty".