5245052621 has 4 divisors (see below), whose sum is σ = 5344015932. Its totient is φ = 5146089312.

The previous prime is 5245052611. The next prime is 5245052647. The reversal of 5245052621 is 1262505425.

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 4635703396 + 609349225 = 68086^2 + 24685^2 .

It is a cyclic number.

It is not a de Polignac number, because 5245052621 - 2²² = 5240858317 is a prime.

It is a super-4 number, since 4×5245052621⁴ (a number of 40 digits) contains 4444 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 (5245052611) 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, 49481576 + ... + 49481681.

It is an arithmetic number, because the mean of its divisors is an integer number (1336003983).

Almost surely, 2^5245052621 is an apocalyptic number.

It is an amenable number.

5245052621 is a deficient number, since it is larger than the sum of its proper divisors (98963311).

5245052621 is an equidigital number, since it uses as much as digits as its factorization.

5245052621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98963310.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 5245052621 is about 72422.7355255240. The cubic root of 5245052621 is about 1737.4672073310.

The spelling of 5245052621 in words is "five billion, two hundred forty-five million, fifty-two thousand, six hundred twenty-one".