2450528781 has 8 divisors (see below), whose sum is σ = 3439338720. Its totient is φ = 1547702352.

The previous prime is 2450528777. The next prime is 2450528789. The reversal of 2450528781 is 1878250542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2450528781 - 2² = 2450528777 is a prime.

It is a super-2 number, since 2×2450528781² = 12010182613018691922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2450528789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21495810 + ... + 21495923.

It is an arithmetic number, because the mean of its divisors is an integer number (429917340).

Almost surely, 2^2450528781 is an apocalyptic number.

It is an amenable number.

2450528781 is a deficient number, since it is larger than the sum of its proper divisors (988809939).

2450528781 is a wasteful number, since it uses less digits than its factorization.

2450528781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42991755.

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 2450528781 is about 49502.8158896037. The cubic root of 2450528781 is about 1348.1967292424.

The spelling of 2450528781 in words is "two billion, four hundred fifty million, five hundred twenty-eight thousand, seven hundred eighty-one".