52021053451 has 4 divisors (see below), whose sum is σ = 52054000600. Its totient is φ = 51988106304.

The previous prime is 52021053431. The next prime is 52021053457. The reversal of 52021053451 is 15435012025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52021053451 - 2¹⁹ = 52020529163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52021053457) 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, 16471206 + ... + 16474363.

It is an arithmetic number, because the mean of its divisors is an integer number (13013500150).

Almost surely, 2^52021053451 is an apocalyptic number.

52021053451 is a deficient number, since it is larger than the sum of its proper divisors (32947149).

52021053451 is a wasteful number, since it uses less digits than its factorization.

52021053451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32947148.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 52021053451 its reverse (15435012025), we get a palindrome (67456065476).

The spelling of 52021053451 in words is "fifty-two billion, twenty-one million, fifty-three thousand, four hundred fifty-one".