4249525851 has 12 divisors (see below), whose sum is σ = 6139619928. Its totient is φ = 2832363744.

The previous prime is 4249525831. The next prime is 4249525871. The reversal of 4249525851 is 1585259424.

4249525851 is a `hidden beast` number, since 4 + 2 + 49 + 525 + 85 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (4249525831) and next prime (4249525871).

It is a de Polignac number, because none of the positive numbers 2^k-4249525851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4249525797 and 4249525806.

It is not an unprimeable number, because it can be changed into a prime (4249525831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11490 + ... + 92903.

It is an arithmetic number, because the mean of its divisors is an integer number (511634994).

Almost surely, 2^4249525851 is an apocalyptic number.

4249525851 is a deficient number, since it is larger than the sum of its proper divisors (1890094077).

4249525851 is a wasteful number, since it uses less digits than its factorization.

4249525851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108922 (or 108919 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 4249525851 is about 65188.3873937682. The cubic root of 4249525851 is about 1619.7456608026.

The spelling of 4249525851 in words is "four billion, two hundred forty-nine million, five hundred twenty-five thousand, eight hundred fifty-one".