2656038001 has 4 divisors (see below), whose sum is σ = 2657898100. Its totient is φ = 2654177904.

The previous prime is 2656037981. The next prime is 2656038013. The reversal of 2656038001 is 1008306562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1008306562 = 2 ⋅504153281.

It can be written as a sum of positive squares in 2 ways, for example, as 1616040000 + 1039998001 = 40200^2 + 32249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2656038001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2656038041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927906 + ... + 930763.

It is an arithmetic number, because the mean of its divisors is an integer number (664474525).

Almost surely, 2^2656038001 is an apocalyptic number.

It is an amenable number.

2656038001 is a deficient number, since it is larger than the sum of its proper divisors (1860099).

2656038001 is a wasteful number, since it uses less digits than its factorization.

2656038001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860098.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2656038001 is about 51536.7635867834. The cubic root of 2656038001 is about 1384.8777192237.

The spelling of 2656038001 in words is "two billion, six hundred fifty-six million, thirty-eight thousand, one".