4255621728501 has 64 divisors (see below), whose sum is σ = 6962355671040. Its totient is φ = 2277160439040.

The previous prime is 4255621728481. The next prime is 4255621728503. The reversal of 4255621728501 is 1058271265524.

It is not a de Polignac number, because 4255621728501 - 2⁶ = 4255621728437 is a prime.

It is a super-2 number, since 2×4255621728501² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4255621728503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1335565 + ... + 3208578.

It is an arithmetic number, because the mean of its divisors is an integer number (108786807360).

Almost surely, 2^{4255621728501} is an apocalyptic number.

It is an amenable number.

4255621728501 is a deficient number, since it is larger than the sum of its proper divisors (2706733942539).

4255621728501 is a wasteful number, since it uses less digits than its factorization.

4255621728501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4544266.

The product of its (nonzero) digits is 1344000, while the sum is 48.

The spelling of 4255621728501 in words is "four trillion, two hundred fifty-five billion, six hundred twenty-one million, seven hundred twenty-eight thousand, five hundred one".