4256938901 has 4 divisors (see below), whose sum is σ = 4268998572. Its totient is φ = 4244879232.

The previous prime is 4256938891. The next prime is 4256938963. The reversal of 4256938901 is 1098396524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 728460100 + 3528478801 = 26990^2 + 59401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4256938901 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256938981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6029306 + ... + 6030011.

It is an arithmetic number, because the mean of its divisors is an integer number (1067249643).

Almost surely, 2^4256938901 is an apocalyptic number.

It is an amenable number.

4256938901 is a deficient number, since it is larger than the sum of its proper divisors (12059671).

4256938901 is a wasteful number, since it uses less digits than its factorization.

4256938901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12059670.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 4256938901 is about 65245.2212886124. The cubic root of 4256938901 is about 1620.6869642769.

The spelling of 4256938901 in words is "four billion, two hundred fifty-six million, nine hundred thirty-eight thousand, nine hundred one".