5075726621 has 4 divisors (see below), whose sum is σ = 5800830432. Its totient is φ = 4350622812.

The previous prime is 5075726611. The next prime is 5075726647. The reversal of 5075726621 is 1266275705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1266275705 = 5 ⋅253255141.

It is a cyclic number.

It is not a de Polignac number, because 5075726621 - 2¹⁰ = 5075725597 is a prime.

It is a super-2 number, since 2×5075726621² = 51526001462256155282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5075726611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362551895 + ... + 362551908.

It is an arithmetic number, because the mean of its divisors is an integer number (1450207608).

Almost surely, 2^5075726621 is an apocalyptic number.

It is an amenable number.

5075726621 is a deficient number, since it is larger than the sum of its proper divisors (725103811).

5075726621 is an equidigital number, since it uses as much as digits as its factorization.

5075726621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725103810.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 5075726621 is about 71244.1339409779. The cubic root of 5075726621 is about 1718.5654413293.

The spelling of 5075726621 in words is "five billion, seventy-five million, seven hundred twenty-six thousand, six hundred twenty-one".