5074513921 has 4 divisors (see below), whose sum is σ = 5081218132. Its totient is φ = 5067809712.

The previous prime is 5074513891. The next prime is 5074513963. The reversal of 5074513921 is 1293154705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1293154705 = 5 ⋅258630941.

It can be written as a sum of positive squares in 2 ways, for example, as 1752259600 + 3322254321 = 41860^2 + 57639^2 .

It is a cyclic number.

It is not a de Polignac number, because 5074513921 - 2¹⁷ = 5074382849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5074513121) 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, 3350970 + ... + 3352483.

It is an arithmetic number, because the mean of its divisors is an integer number (1270304533).

Almost surely, 2^5074513921 is an apocalyptic number.

It is an amenable number.

5074513921 is a deficient number, since it is larger than the sum of its proper divisors (6704211).

5074513921 is an equidigital number, since it uses as much as digits as its factorization.

5074513921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6704210.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 5074513921 is about 71235.6225564148. The cubic root of 5074513921 is about 1718.4285630412.

The spelling of 5074513921 in words is "five billion, seventy-four million, five hundred thirteen thousand, nine hundred twenty-one".