2145525011 has 16 divisors (see below), whose sum is σ = 2603942400. Its totient is φ = 1726800768.

The previous prime is 2145525007. The next prime is 2145525037. The reversal of 2145525011 is 1105255412.

It is not a de Polignac number, because 2145525011 - 2² = 2145525007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145525061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56351 + ... + 86408.

It is an arithmetic number, because the mean of its divisors is an integer number (162746400).

Almost surely, 2^2145525011 is an apocalyptic number.

2145525011 is a deficient number, since it is larger than the sum of its proper divisors (458417389).

2145525011 is a wasteful number, since it uses less digits than its factorization.

2145525011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142898.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2145525011 is about 46319.8122945247. The cubic root of 2145525011 is about 1289.7668009846.

The spelling of 2145525011 in words is "two billion, one hundred forty-five million, five hundred twenty-five thousand, eleven".