5241821653 has 4 divisors (see below), whose sum is σ = 5243482048. Its totient is φ = 5240161260.

The previous prime is 5241821623. The next prime is 5241821723. The reversal of 5241821653 is 3561281425.

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 5241821653 - 2²⁵ = 5208267221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5241821623) 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, 825453 + ... + 831778.

It is an arithmetic number, because the mean of its divisors is an integer number (1310870512).

Almost surely, 2^5241821653 is an apocalyptic number.

It is an amenable number.

5241821653 is a deficient number, since it is larger than the sum of its proper divisors (1660395).

5241821653 is a wasteful number, since it uses less digits than its factorization.

5241821653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660394.

The product of its digits is 57600, while the sum is 37.

The square root of 5241821653 is about 72400.4257791348. The cubic root of 5241821653 is about 1737.1103723963.

The spelling of 5241821653 in words is "five billion, two hundred forty-one million, eight hundred twenty-one thousand, six hundred fifty-three".