5252051521 has 4 divisors (see below), whose sum is σ = 5263298352. Its totient is φ = 5240804692.

The previous prime is 5252051513. The next prime is 5252051551. The reversal of 5252051521 is 1251502525.

5252051521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 5252051521 - 2³ = 5252051513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5252051521.

It is not an unprimeable number, because it can be changed into a prime (5252051551) 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, 5622715 + ... + 5623648.

It is an arithmetic number, because the mean of its divisors is an integer number (1315824588).

Almost surely, 2^5252051521 is an apocalyptic number.

It is an amenable number.

5252051521 is a deficient number, since it is larger than the sum of its proper divisors (11246831).

5252051521 is a wasteful number, since it uses less digits than its factorization.

5252051521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11246830.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 5252051521 is about 72471.0391880784. The cubic root of 5252051521 is about 1738.2396784112.

The spelling of 5252051521 in words is "five billion, two hundred fifty-two million, fifty-one thousand, five hundred twenty-one".