3802452521 has 4 divisors (see below), whose sum is σ = 4345660032. Its totient is φ = 3259245012.

The previous prime is 3802452491. The next prime is 3802452527. The reversal of 3802452521 is 1252542083.

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 3802452521 - 2²⁶ = 3735343657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3802452527) 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, 271603745 + ... + 271603758.

It is an arithmetic number, because the mean of its divisors is an integer number (1086415008).

Almost surely, 2^3802452521 is an apocalyptic number.

It is an amenable number.

3802452521 is a deficient number, since it is larger than the sum of its proper divisors (543207511).

3802452521 is an equidigital number, since it uses as much as digits as its factorization.

3802452521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543207510.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 3802452521 is about 61664.0293931559. The cubic root of 3802452521 is about 1560.8263922243.

The spelling of 3802452521 in words is "three billion, eight hundred two million, four hundred fifty-two thousand, five hundred twenty-one".